The ALPHA WIRE part F2213/8-BK004, also known as FIT-221 3/8" BLACK, is an electrical heat shrink tubing with a diameter of 3/8 inches. This tubing is designed to provide insulation and protection to wires and cables in various applications. It is black in color and comes in a convenient length of 60.96 meters (200 feet). The FIT-221 3/8" BLACK tubing offers excellent resistance to abrasion, chemicals, and fluids, making it suitable for both indoor and outdoor use. When heated, it shrinks tightly around the wire or cable, creating a waterproof and durable seal. This high-quality heat shrink tubing from ALPHA WIRE ensures reliable electrical connections and is an essential component for electrical and wiring projects.