Heat Shrinkable Dual Wall has a meltable inner wall to waterproof cover, to insulate & to protect electrical cables. It shrinks to approximately 50% of the original size for a skin tight fit. It is simply cut to size and slide over wire or joint, and is specially good for crimp terminals. We offer these Dual Wall Tubing to our esteemed clients at market leading price. Heated evenly with a heat gun and the tube shrinks to a skin tight fit. After cooling, the tubing is permanent, flexible and waterproof.