Heat Shrink HS2127 tubing provides reliable insulation and protection for electrical connections and components. This 1-meter length of black heat shrink tubing shrinks from 12mm to 6.4mm when heated, creating a secure, weatherproof seal around wires, joints, and terminals. Ideal for automotive, industrial, and general electrical applications, it offers excellent chemical resistance and durability. Simply slide over your connection, apply heat, and watch it conform tightly for professional-grade results. Essential for any electrician's toolkit.