GARDNER BENDER 8-2 AWG Heavy-Wall Heat-Shrink Tubing - Black HWT-0025 - The Home Depot
Shrink-N-Repair (M) - Wrap Around Heat Shrink (Black) for Medium Wire Diameters up to 0.5" - 36" Long - Split Heat Shrink Tape: Amazon.com: Industrial & Scientific
Wrap Around Heat Shrink Tubing - Cableorganizer.com