Specification:Description:5 Size Heat colorful Shrink Wire Tube Assortment Kit, 5 size and 7 color, each size of each color is 2pcs,and total there is 70pcs.Polyolefin Heat Shrink Shrinkable Wire Insulation Tube Assortment Kit rate 2:1Professional, fast, and secure way to wrap wire harnesses.Shrinks to half its diameter.