This listing is for a ThermOSleeve HST18BK100 3/32" Polyolefin thin wall cross-linked Heat Shrink Tubing. This product has a 2:1 shrink ratio and is both UL & CSA certified at 600V @ 125 Degree Centigrade UL File E180908. ThermOSleeve tubing is a Polyolefin flexible heat shrinkable tubing designed for the commercial market. Properties include flame-retardancy, resistance to common fluids and solvents as well as high dielectric strength. It is suitable for a wide range of applications, including electrical insulation, strain relief, cable bonding, color-coding and identification. Special Deal: Buy 3ft and get 1ft FREE