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 14 AWG to 10 AWG, I.D. Before Shrinking 0.35 in, I.D. After Shrinking 0.12 in, Wall Thickness After Shrinking 0.07 in, Length 6 in, Shrink Tubing Properties High Heat , Color Black, Temp. Range -67 Degrees to 230 Degrees F, Package Style Individual Pieces, Min. Shrink Temp. 248 Degrees F, Dielectric Strength 600 V