Dual wall adhesive lined heat shrink tubing. This black heat shrink is great if you''re building a wiring harness from scratch or making repairs to the original harness. We have it in a range of sizes, choose the size you need from the drop down menu. Sold as a 10 foot roll.3 to 1 Heat Shrink RatioEnvironmentally friendly adhesive lining and sealant provides moisture-proof sealFlame retardant adhesiveFlexible and extremely durableSony, UL and RoHS CompliantOperating Temperature: -49°F ~ 257°F (-45?~125?)Shrink Temperature: Starts at 158°F (70?)Shrink Temperature: Full recovery at 257°F (125?)Sizes Available:3.2mm - 1/8"4.8mm - 3/16"6.4mm - 1/4"9.5mm - 3/8"12.7mm - 1/2"19.1mm - 3/4"This heat shrink is made of cross-linked polyethylene material and environment friendly hot-melt adhesive. It is universally applied to provide water proof, air-proof, anti-corrosion protection to electrical wire, cables and connections. It can be used on motorcycles, automobiles, marine applications and in many other environments. After heating it, give it a few minutes to cool so the adhesive can form a tight bond.We also have connector covers and wire harness tubing in various sizes as well as a variety of electrical connectors . We carry electrical wire in a variety of colors.