Heat Shrink Tubing, Heavy Wall, Material Cross-Linked Polyolefin with Adhesive, Rigid, Flame Retardant No, Adhesive Lined Yes, Shrink Ratio 3:1, Use With Wire Size 2 AWG to 4/0 AWG, I. D. Before Shrinking 1.1 in, I. D. After Shrinking 0.37 in, Wall Thickness After Shrinking 0.12 in, Length 12 in, Shrink Tubing Properties Abrasion Resistant, Acid and Alkali Resistant, UV Light Resistant, Color Black, Temp. Range -67 Degrees to 230 Degrees F, Package Style Individual Pieces