Heat Shrink Tubing, Heavy Wall, Material Cross-Linked Polyolefin with Adhesive, Flexible, Flame Retardant No, Adhesive Lined Yes, Shrink Ratio 3:1, Use With Wire Size 8 AWG to 6 AWG, I.D. Before Shrinking 0.5 in, I.D. After Shrinking 0.19 in, Wall Thickness After Shrinking 0.13 in, Length 1.5 in, Shrink Tubing Properties Abrasion Resistant, Color Black, Temp. Range -67 Degrees to 230 Degrees F, Package Style Individual Pieces, Min. Shrink Temp. 257 Degrees F, Dielectric Strength 600 V