TECHSPAN Single Wall Heat Shrink Tubing is a versatile, general-purpose solution made from cross-linked polyolefin, offering excellent electrical, chemical, and physical properties. This tough, flexible tubing is ideal for insulation, harnessing, strain relief, and identification in various industrial and military applications. It features a 2:1 shrink ratio, meets UL and CSA requirements, is flame retardant (except clear), generates low smoke, and is halogen-free. Available in convenient 4-foot lengths, it operates continuously from -45°C to 125°C and is rated for 600V.This is a TECHSPAN Single Wall Heat Shrink tubing with a 2:1 shrink ratio. It has an expanded internal diameter of 0.188 inches (4.77 mm) and a recovered internal diameter of approximately 0.094 inches (2.38 mm). The tubing is 4 feet in length and has a wall thickness of 0.020 inches (0.51 mm). It is rated for 600V and has a continuous operating temperature range of -45°C to 125°C. It meets UL 224 (File 203950 for colors) and CSA C22.2, 198.1 (File 220127) requirements. The product is halogen-free and flame retardant (except clear).