Heat Shrink Tubing organizes, protects, insulates, and provides strain relief for cables. Choose standard polyolefin in shrink ratios of 2:1, 2.5:1, 3:1, and 4:1. Adhesive-lined, which provides a weather-tight seal, is additionally available in the 6:1 shrink ratio. Cold shrink, also available in this collection, covers like heat shrink but without the need for a heat gun to activate it.