This TECHSPAN Single Wall Heat Shrink Tubing is a general-purpose, thermocontractible solution designed for insulation, harnessing, strain relief, and identification. Made from a specially formulated, cross-linked polyolefin, it offers excellent electrical, chemical, and physical properties. The tubing features a 2:1 shrink ratio, is flame retardant, and provides low smoke generation. It meets UL and CSA requirements and is rated for 600V. Available in a 100-foot spool, this black tubing is ideal for a variety of industrial and military applications.The TECHSPAN HSPO-250-0-C is a single-wall heat shrink tubing with a 2:1 shrink ratio. It has an expanded inner diameter of 1/4 inch and a recovered inner diameter of 1/8 inch. The tubing is black, made of polyolefin, and has a continuous operating temperature range of -45°C to 125°C. It is UL224 VW-1 rated and CSA C22.2, 198.1 FILE 220127 certified, with a voltage rating of 600V. The wall thickness when recovered is approximately 0.025 inches (0.64 mm). It is supplied in 100-foot lengths.