The ALPHA WIRE part GRP1201/4-BLACK-500 is a high-quality heat shrink expandable sleeving made from durable polyester material. This sleeving is designed to protect cables and wires from abrasion, chemicals, and other potential damage. With a length of 152.4m (500ft) per spool, it offers ample coverage for a wide range of applications. The black color of the sleeving adds a sleek and professional appearance. Reliable and easy to use, this heat shrink expandable sleeving from ALPHA WIRE is an essential component for any wiring project requiring added protection and organization.