Mate is that heat shrink or silicone tube on the arms.
It's 3M shrink tubing made of polyolefin. I like using it on the arms because it's a little thicker than my black shrink tube. I can't remember the exact size but here are a couple links: https://www.grainger.com/product/3M-6-Thin-Wall-Heat-Shrink-Tubing-30N570 and https://www.grainger.com/product/3M-6-Thin-Wall-Heat-Shrink-Tubing-30N560
By flying toaster on Dec 11, 2017
Mate is that heat shrink or silicone tube on the arms.
It's 3M shrink tubing made of polyolefin. I like using it on the arms because it's a little thicker than my black shrink tube. I can't remember the exact size but here are a couple links: https://www.grainger.com/product/3M-6-Thin-Wall-Heat-Shrink-Tubing-30N570 and https://www.grainger.com/product/3M-6-Thin-Wall-Heat-Shrink-Tubing-30N560