Heat Shrink Tubing, Thin Wall, Material Polyolefin, Flexible, Flame Retardant Yes, Adhesive Lined No, Shrink Ratio 2:1, Use With Wire Size 14 AWG to 8 AWG, I.D. Before Shrinking 0.27 in, I.D. After Shrinking 0.13 in, Wall Thickness After Shrinking 0.02 in, Length 4 ft, Shrink Tubing Properties UV Light , Color Black, Temp. Range -55 Degrees to 125 Degrees F, Package Style Individual Pieces, Min. Shrink Temp. 158 Degrees F, Dielectric Strength 600 V, Max. Temp. Rating 125 Degrees F