The ALPHA WIRE part F2213/8-BK007 is a high-quality heat shrink tubing designed for a variety of electrical applications. With a 3/8" diameter, this black tubing offers excellent protection and insulation for your wiring needs. It comes in a convenient 15.24m (50ft) length, providing ample material to tackle multiple projects. The FIT-221 technology ensures a reliable and durable solution, offering resistance to abrasion, chemicals, and extreme temperatures. Whether you're working on professional electrical systems or DIY projects, the ALPHA WIRE F2213/8-BK007 is an ideal choice for securing and bundling wires securely while maintaining a sleek and professional look.