The ALPHA WIRE FIT2211/2-BLACK-5X4 heat shrink tubing is a versatile and durable solution for all your electrical insulation needs. With a shrink ratio of 2:1, this tubing is designed to provide a tight and secure fit over cables and wires to protect them from abrasion, moisture, and other environmental factors.This black tubing is 1/2 inch in size and comes in a package of 5 individual 4-foot sections, making it easy to cut and customize to your desired length. It is made from a flame-retardant polyolefin material that offers excellent electrical insulation properties and can withstand a wide range of temperatures.Whether you're working on electrical repairs, installations, or DIY projects, the ALPHA WIRE FIT2211/2-BLACK-5X4 heat shrink tubing is a reliable and efficient choice to ensure the longevity and safety of your electrical connections.