The ALPHA WIRE part F2211/4-BK005 is a high-quality heat shrink tubing designed for electrical insulation and wire protection. This specific product has a 1/4" diameter and comes in a stylish black color. With a generous length of 30.48 meters (100 feet) per package, it is ideal for various industrial and commercial applications. The FIT-221 tubing provides excellent protection against abrasion, chemicals, and extreme temperatures. Whether you are working on electrical installations, repairs, or maintenance, this reliable heat shrink tubing will ensure secure and durable connections.