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
Colored 2:1 Heat Shrink Tubing | Standard Polyolefin
2:1 Polyolefin Heat Shrink Tubing | Buyheatshrink
Heat Shrink Tubing Material Used in Common Applications