This version of Whoop Wire is both red and black twisted together and is sold in a spool of 30ft, so, I dunno, enough wiring for like a hundred custom led mods??!!
This military-grade connection wire is perfect for custom Tiny Whoop led mods. It's easy to solder, very high quality, high conductivity for its size, and is my go-to wire for custom led mods on Tiny Whoops. I use a glue like e6000 or Welder to hold it on to the frame, with some little wooden application clips.
This wire has a slim jacket of thermoplastic that gives it a total diameter of 0.021 inches, yet it is fully capable of handling up to 36 volts of power at 5 amps. This is "OFHC" (oxygen-free high-conductivity copper wire), and you'll find it to be flexible and aprasion-resistant wire.
Need the perfect tool to strip this wire? Check this out.