Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of black wire. The...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with one 25ft spool of black...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with one 25ft spool of red...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with one 25ft spool of green...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of red wire. The wire...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with one 25ft spool of blue...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of blue wire. The wire...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of yellow wire. The...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of green wire. The...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of orange wire. The...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with one 25ft spool of white...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with one 25ft spool of yellow...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with one 25ft spool of orange...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with one 25ft spool of gray wire....

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of grey wire. The wire...

Silicone-sheathing wire is super-flexible and soft, and it's also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of black, red, blue,...

Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to be able to deal with a lot of bending. Comes with 2m of white wire. The...

You'll find these handy 2-pin 0.1" spacing pig-tails to be quite helpful when wiring up your project. The connector end snaps cleanly into 0.1" spaced header (and fits neatly side by side on 0.1" spacing as well). We think this would be especially useful when paired with our PWM driver breakout, to control 16 PWM LEDs that are wired, but there are probably a dozen...

For those who are fans of our silicone-covered wires, but are always looking to up their wiring game. We now have Silicone Cover Ribbon cables! These may look a lot like squid ink noodles, but they're not. The silicone-sheathed wire is super-flexible and soft, and it's also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps...

We've upgraded our basic 'adjustable' wire strippers to these multi-sized wire strippers. They include: 20-30 AWG strippers, wire cutters, 'plier' tips, and a wire loop. Ground blades for precision cutting. Spring return, comfy molded handles and a closing-lock. Great for general usage, we use them for standard 22 AWG solid-core breadboarding wire and 26 AWG stranded...

These solid 2.5mm pitch connector cable pairs are great when you need something that can carry a couple amps of current, easy to connect and disconnect, and is just-about 0.1" pitch compatible. These cables are nice and long, 20cm in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock to...

These solid 2.5mm pitch connector cable pairs are great when you need something that can carry a couple amps of current, easy to connect and disconnect, and is just-about 0.1" pitch compatible. These cables are nice and long, 20 cm each, in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock...

These solid 2.5mm pitch connector cable pairs are great when you need something that can carry a couple amps of current, easy to connect and disconnect, and is just-about 0.1" pitch compatible. These cables are nice and long, 20 cm each, in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock...

These solid 2.5mm pitch connector cable pairs are great when you need something that can carry a couple amps of current, easy to connect and disconnect, and is just-about 0.1" pitch compatible. These cables are nice and long, 20 cm each, in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock...

These solid 2.5mm pitch connector cable pairs are great when you need something that can carry a couple amps of current, easy to connect and disconnect, and is just-about 0.1" pitch compatible. These cables are nice and long, 20cm in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock to...

This 4-wire cable is a little over 150mm / 6" long and fitted with JST-PH female 4-pin connectors on each end. These types of JST cables are commonly found on small rechargeable battery packs, RC receivers and transmitters, tiny cameras, and other small electronic devices We're using these to connect to STEMMA boards, the connector is compact yet durable, stays...

These solid 2.0mm pitch connector cable pairs are great when you need something that can carry a couple of amps of current and are easy to connect and disconnect. These cables are nice and long, 20 cm each, in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock to make easy-breezy...

These solid 2.0mm pitch connector cable pairs are great when you need something that can carry a couple of amps of current and are easy to connect and disconnect. These cables are nice and long, 20 cm each, in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock to make easy-breezy...

These solid 2.0mm pitch connector cable pairs are great when you need something that can carry a couple of amps of current and are easy to connect and disconnect. These cables are nice and long, 20 cm each, in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock to make easy-breezy...

These solid 2.0mm pitch connector cable pairs are great when you need something that can carry a couple of amps of current and are easy to connect and disconnect. These cables are nice and long, 20 cm each, in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock to make easy-breezy...

These solid 2.0mm pitch connector cable pairs are great when you need something that can carry a couple of amps of current and are easy to connect and disconnect. These cables are nice and long, 20 cm each, in fact. They've got both small form factor and are a matching set, with an inline socket and plug connector. The two friction lock to make easy-breezy...

Spring terminal blocks will simplify your wiring and make your project more rugged. Instead of soldering wires to your perf board, solder in these 0.1" pitch terminal blocks. There's a little spring contact so you can pull back on the plastic bit and slip in your 20 to 26 AWG solid or stranded-core wires. Each terminal block is electrically isolated from those next...

Spring terminal blocks will simplify your wiring and make your project more rugged. Instead of soldering wires to your perf board, solder in these 0.1" pitch terminal blocks. There's a little spring contact so you can pull back on the plastic bit and slip in your 20 to 26 AWG solid or stranded-core wires. Each terminal block is electrically isolated from those next...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

This wire is super-flexible, soft, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

This wire is flexible, strong, and super easy to solder, too! Stranded core wire is best used for wiring jigs where theres bending or movement expected. Works well with terminal blocks as well. It's not great for use with breadboards (without tinning) For prototyping with breadboards, perfboards, and terminal blocks check out our solid-core wires. Comes with one 25ft...

For those who are fans of our silicone-covered wires, but are always looking to up their wiring game. We now have Silicone Cover Ribbon cables! These may look a lot like squid ink noodles, but they're not. The silicone-sheathed wire is super-flexible and soft, and it's also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps...

For those who are fans of our silicone-covered wires, but are always looking to up their wiring game. We now have Silicone Cover Ribbon cables! These may look a lot like squid ink noodles, but they're not. The silicone-sheathed wire is super-flexible and soft, and it's also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps...

This is a box of ten 25ft spools of stranded-core wire. Stranded-core wire is best used for wiring jigs where there's bending or movement expected. It also works well with terminal blocks. It's not great for use with breadboards (without tinning). The wire is easy to solder to, and when bent it keeps its shape pretty well. We like to have a few spools of this stuff...

This is a box of six 25ft spools of stranded-core wire. Stranded-core wire is best used for wiring jigs where there's bending or movement expected. It also works well with terminal blocks. It's not great for use with breadboards (without tinning). The wire is easy to solder to, and when bent it keeps its shape pretty well. We like to have a few spools of this stuff...

Crimping's not just for 80s hair metal bands! When your project requires repeated insertion and removal with minimal strain, why not check out the reliable wire ferrule? A wire ferrule is a tinned sleeve that once crimped, neatly holds all the pesky, individual strands of a stranded wire, giving you consistently stable connections, especially with screw-type terminal...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds its shape. We love the sturdiness and reliability for prototyping and use these all the time in breadboards, perfboards, and in terminal blocks. For wearables or projects where the wire-harness has to be able to deal with...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds its shape. We love the sturdiness and reliability for prototyping and use these all the time in breadboards, perfboards, and in terminal blocks. For wearables or projects where the wire-harness has to be able to deal with...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds its shape. We love the sturdiness and reliability for prototyping and use these all the time in breadboards, perfboards, and in terminal blocks. For wearables or projects where the wire-harness has to be able to deal with...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds its shape. We love the sturdiness and reliability for prototyping and use these all the time in breadboards, perfboards, and in terminal blocks. For wearables or projects where the wire-harness has to be able to deal with...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds its shape. We love the sturdiness and reliability for prototyping and use these all the time in breadboards, perfboards, and in terminal blocks. For wearables or projects where the wire-harness has to be able to deal with...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds its shape. We love the sturdiness and reliability for prototyping and use these all the time in breadboards, perfboards, and in terminal blocks. For wearables or projects where the wire-harness has to be able to deal with...

This spool of solid-core wire is easily soldered to and can handle up to 200°C and 600V. We like this wire because it's flexible but also holds its shape. We love the sturdiness and reliability for prototyping and use these all the time in breadboards, perfboards, and in terminal blocks. For wearables or projects where the wire-harness has to be able to deal with...

Discontinued - you can grab Silicone Cover Stranded-Core Ribbon Cable - 4 Wires 1 Meter Long - 30 AWG Black instead! This supple, slippery silicone wire has 4 conductors, 24AWG each sealed in a full silicone casing. It's heavy duty so you can pass tons of current but soft and flexible so its good for wearables. We think this would be a good pair for our LED strips....

This lightweight, flexible fabric ribbon channel contains four individual wires, perfect for wiring up wearables where flexibility is key. This ribbon has 4 x 28AWG stranded-core wires, easy to solder but also quite flexible. There's no risk of accidental shorts since each wire is sleeved, and you can also pass a fair bit of current Features: Ultra-low resistance:...

These 4-wire cables are 15cm long and come as a set, one side has a JST SM type connector plug on the end. The other side has a matching JST SM type receptacle connector. They are good for whenever you have 4 wires you want to be able to plug and unplug. We like the solid and compact nature of these connectors and the latch that keeps the cable from coming apart...

This one's going out to all the makers and designers who love using terminal blocks for wiring up their projects. This adapter plate is perfect for industrial / robotics projects with a lot of wires. You connect your Raspberry Pi Pico to this breakout PCB, which comes with a plastic enclosure with screw-mount nubs at each end. Attach to any surface by drilling two...

These Banana Plugs not only look great, they're also solder-free and stackable! Banana plugs are often used on test equipment, tools, synthesizers and other electronic patch panels. Each connector is designed with bowed strips to provide secure and uniform contact between the plug and jack. Even after multiple insertions, the non-collapsing design stays true to form....

This one's going out to all the makers and designers who love using terminal blocks for wiring up their projects. This adapter plate is perfect for industrial / robotics projects with a lot of wires. You connect your Raspberry Pi Pico to this breakout PCB. All wires are broken out into terminal blocks, so you can connect and power your sensors, displays,...

Connect this to that without soldering using these small alligator clip test leads. 18" long cables with color-coded alligator clips on both ends. You get 6 pieces in 6 unique colors. Strong and grippy, these always come in handy! We often use these in conjunction with a multimeter so we don't have to hold the probes in place. Compared to our large alligator clip...

This cable is a little over 100mm / 4" long and fitted with JST-PH 3-pin connectors on either end. We dig the solid and compact nature of these connectors and the latch that keeps the cable from coming apart easily. We're carrying these to match up with our STEMMA boards and sensors that have 3-pin connections - and the wires are even color coded! Red is power,...

Build and customize your very own open-source button grid controller based on the Adafruit Trellis with the UNTZtrument kit HELLA UNTZtrument KIT! Designed by PaintYourDragon, this DIY kit comes with delicious translucent button pads, controller pads, diffused white LEDS and a custom laser cut enclosure. The result is a sturdy, BIG, and elegant but also...

Nothing is going to be as thin and flexible as this wire - it feels a little like waxed thread but can carry current! You could use this in wearables or very fine assemblies where weight and bulk is at a premium. Silicone wires are flexible but aren't as thin. Wire-wrapping wire is thin but isn't flexible. The covering for the wire is Teflon so its good from -80 to...

Nothing is going to be as thin and flexible as this wire - it feels a little like waxed thread but can carry current! You could use this in wearables or very fine assemblies where weight and bulk is at a premium. Silicone wires are flexible but aren't as thin. Wire-wrapping wire is thin but isn't flexible. The covering for the wire is Teflon so it's good from -80 to...

When working with unusual non-header-friendly surfaces, these handy cables will be your best friends! No longer will you have long, cumbersome strands of alligator clips. These compact jumper cables have a premium male header on one end and a grippy mini alligator clip on the other. Grab onto your Flora, Circuit Playground, micro:bit, Gemma, or even a banana, and...

When working with unusual non-header-friendly surfaces, these handy cables will be your best friends! No longer will you have long, cumbersome strands of alligator clips. These compact jumper cables have a premium female header on one end and a grippy mini alligator clip on the other. Grab onto your Circuit Playground, micro:bit, CRICKIT, Gemma, or even a banana, and...

This is the USB-A Male Plug to 5-pin Terminal Block. If you need to connect to a device with a USB Jack, maybe make your own USB stick or custom cable of sorts - this adapter will come in very handy! No soldering required. Just use a small screwdriver to open up the terminal blocks, slide in your stranded or solid-core wire, and re-tighten. The terminal block itself...

If you need to connect an RJ45 cable (a.k.a Ethernet) to a board that with an Ethernet Jack - this adapter will come in very handy! No soldering required. Just use a slim screwdriver to open up the terminal blocks, slide in your stranded or solid-core wire and re-tighten. Note that these aren't recommended for actual Ethernet traffic, especially long term...but for...

One truth about working with audio is you always need the cable or adapter you don't have in your toolbox. That's why we love these terminal-block audio connectors so much. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs. This is the 3.5mm (1/8") 4-Pole (TRRS) Audio Plug Terminal Block. TRRS stands for Tip,...

One truth about working with audio is you always need the cable or adapter you don't have in your toolbox. That's why we love these terminal-block audio connectors so much. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs. This is the 3.5mm (1/8") Stereo Audio Plug Terminal Block. It's the most common size...

One truth about working with audio is you always need the cable or adapter you don't have in your toolbox. That's why we love these terminal-block audio connectors so much. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs. This is the 3.5mm (1/8") 4-Pole (TRRS) Audio Jack Terminal Block. TRRS stands for Tip,...

Make your next custom USB cable a breeze with a USB Micro B Male Plug to 5-pin Terminal Block. If you need to connect to a device with a micro USB plug or maybe make your own USB OTG device or custom cable of sorts - this adapter will come in very handy: no soldering required! Just use a small screwdriver to open up the terminal blocks, slide in your stranded or...

One truth about working with audio is you always need the cable or adapter you don't have in your toolbox. That's why we love these terminal-block audio connectors so much. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs. This is the 3.5mm (1/8") Stereo Audio Jack Terminal Block. It's the most common size...

One truth about working with A/V is you always need the cable or adapter you don't have in your toolbox. That's why we love these terminal-block RCA connectors so much. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs. This is the RCA (Composite Video, Audio) Male Terminal Block. RCA is one of the most...

One truth about working with A/V is you always need the cable or adapter you don't have in your toolbox. That's why we love these terminal-block RCA connectors so much. No soldering required! Use stranded or solid core wire and a small screw driver to create custom wiring jigs. This is the RCA (Composite Video, Audio) Female Jack Terminal Block. RCA is one of the...

This one's going out to all the makers and designers who use DIN railing in their builds. This adapter plate is perfect for simplifying complex wiring. You connect an Arduino Uno or Adafruit Metro to this breakout PCB, which can be DIN rail-mounted. All wires are broken out into terminal blocks, so you can connect and power your sensors, displays, microcontrollers,...

Make your next custom USB cable a breeze with a USB Mini B Female Socket to 5-pin Terminal Block. If you need to connect to a device with a mini USB plug or maybe make your own USB OTG device or custom cable of sorts - this adapter will come in very handy: no soldering required! Just use a small screwdriver to open up the terminal blocks, slide in your stranded or...

This one's going out to all the makers and designers who use DIN railing in their builds. This adapter plate is perfect for simplifying complex wiring. You connect an Arduino Mega or Grand Central M4 Express to this breakout PCB, which can be DIN rail-mounted. All wires are broken out into terminal blocks, so you can connect and power your sensors, displays,...

Make your next custom USB cable a breeze with a Micro USB Female Socket to 5-pin Terminal Block. If you need to connect to a device with a micro USB plug or maybe make your own USB OTG device or custom cable of sorts - this adapter will come in very handy: no soldering required! Just use a small screwdriver to open up the terminal blocks, slide in your stranded or...

Make your next custom USB cable a breeze with a USB Mini B Male Plug to 5-pin Terminal Block. If you need to connect to a device with a mini USB socket or maybe make your own custom cable of sorts - this adapter will come in very handy: no soldering required! Just use a small screwdriver to open up the terminal blocks, slide in your stranded or solid-core wire, and...

RGB Pixels are digitally-controllable lights you can set to any color, or animate. Each RGB LED and controller chip is molded into a 'dot' of silicone. The dots are weatherproof and rugged. There are four flanges molded in so that you can 'push' them into a 12mm drill hole in any material up to 1.5mm/0.06" thick. They're typically used to make outdoor signs. These...