Prepare your semi truck to be Ready for the Road Ahead™, with the ATD Heat Shrink Tube Assortment that efficiently protects wires. By utilizing a heat-shrink design, this replacement wire wraps are able to create a secure connection, prevent damage, and lock out moisture. Constructed with a wide variety of tube diameters to meet the needs of each job. FleetPride is your First Click in Heavy Duty®.