The Grote 6" Dual Wall 3:1 Heat Shrink Tubing is the perfect solution for protecting your electrical connections. This heat shrinkable tubing is made from cross linked polyolefin materials for durability and longevity. It features an adhesive lined inner wall that melts when heated to fill and flow surface defects. The outer jacket shrinks to provide a rugged protection from chemicals, abrasion, vibration and flexing. The black color gives it a professional look. FleetPride is your First Click in Heavy Duty®.