HEATSHRINK, 2:1, 12.7MM, 100M; Shrink Ratio:2:1; I.D. Supplied - Imperial:0.499"; I.D. Supplied - Metric:12.7mm; Shrink Tubing / Boot Colour:Black; Length - Imperial:328ft; Length - Metric:100m; I.D. Recovered Max - Imperial:0.251"; I.D. Recovered Max - Metric:6.4mm; Shrink Tubing / Boot Material:PO (Polyolefin); Product Range:TCN20 Series; Accessory Type:Heat Shrink; I.D. Max Recovered:6.4mm; I.D. Supplied:12.7mm; Wall Thickness Recovered:0.65mm