HellermannTyton Heat Shrink Tubing, Type TFN21-4.8/2.4 Flexible Non-Adhesive, 600 V AC, 0.188 in Inner Dia Expanded, 0.094 in Inner Dia Recovered, Thin Wall, 0.019 in Wall Thickness Recovered, 2:1 Shrink, 50 ft Length, -67 to 275 deg F, 212 deg F Shrink, Cross Linked Polyolefin, Black