Heat Shrink Tubing, Heavy Wall, Material Cross-Linked Polyolefin with Adhesive, Flame Retardant No, Adhesive Lined Yes, Shrink Ratio 3:1, Use With Wire Size 2/0 AWG to 350 MCM, I.D. Before Shrinking 1.5 in, I.D. After Shrinking 0.47 in, Wall Thickness After Shrinking 0.16 in, Length 4 ft, Shrink Tubing Properties High Heat Resistant, Color Black, Temp. Range -67 Degrees to 230 Degrees F, Package Style Individual Pieces, Min. Shrink Temp. 248 Degrees F, Dielectric Strength 600 V