HellermannTyton's 300-73030 Low-Heat Shrinkable Tubing 2:1 self extinguishing 2,4/1,2 is a high quality, general purpose 2:1 shrinkable tubing for insulating and protecting electrical wires and components. This product can be manually formed around irregular shapes or connectors and provides outstanding environmental protection. It is resistant to oils, acids, solvents, and grease as well as protection from abrasion, vibration, and noise. The low-heat shrinkable tubing has a small shrink temperature of 75°C, allowing it to be used in areas with frequent temperature changes. It features a wire gauge marking for precise fitting even in tight spaces.