uxcell 8mm Diameter Ratio 2:1 Heat Shrinking Shrinkable Tube Blue 4M Long Product Name : Heat Shrinkable Tube;Material : Polyolefin;Rated Voltage : 600V Temperature Level : 125 C;Flammability : VW-1 Diameter : 8mm / 0.315" (Before Shrinking),4mm / 0.157" (After Shrinking);Shrink Ratio : 2:1 Length (Approx.) : 4M / 13.1Ft;Color : Blue Weight : 40g;Package Content : 1 x Heat Shrinkable Tube