Product Name: Heat Shrink Tubing, 2-1/2", Multicolor, 120PC

Product Model: HT.ER-07

Cut tubing to the desired length ,slide tubing over the wire connection to be protected and apply even heat ,with a lighter or other controlled heat source . For best results ,heat tubing from the center outward ,moving the heat source back and forth until tubing shrinks and forms a seal ,allow tubing to cool before handling. >40-22-18 gauge red  >40-16-14 gauge blue   >40-12-10 gauge yellow