The ALPHA WIRE part F42111/2-BK105, also known as FIT-421, is a high-quality black tubing designed for various applications. With a length of 1-1/2" and a thickness of 5X4ft, this tubing is perfect for protecting and organizing wires and cables. It provides excellent insulation and protection against abrasion, chemicals, and UV radiation. The FIT-421 tubing is easy to install and is made from durable materials to ensure long-lasting performance. Whether you need to protect electrical systems, automotive wiring, or any other application where wire management is crucial, this tubing offers a reliable solution.