3M™ Heat Shrink Tubing, Adhesive Lined Flame-Retardant Non-Corrosive, 600 VAC, 1 in ID Expanded, 1/2 in ID Recovered, Dual Wall, 0.046 in Wall Thickness Recovered, 2:1 Shrink Ratio, 48 in Length, -67 to 230 deg F, 250 deg F Shrink, Polyolefin, Black