The HellermannTyton 300-73040 Low-Heat Shrinkable Tubing 2:1 self extinguishing 3,2/1,6 is an electronic part designed to shrink and secure connections, extend life of cables, and provide environmental and mechanical protection. It is a thin-wall tubing made from polyolefin which shrinks to half its original diameter when exposed to heat. The tubing meets UL, CSA, and VW-1 requirements. With its excellent high temperature resistance and low shrink temperature, it is suitable for heat-sensitive components and can be used in many applications including automotive, agriculture, electronic assembly, and marine. It features an installation temperature range of 23°C to 82°C (73-180°F) and an operating temperature range of -55°C to 125°C (-65-257°F). This tubing offers a smooth interior wall that reduces internal friction for smoother and quicker wire pulling. It also features an excellent resistance to fluids, chemicals, and abrasion.