Heat Shrink Tubing Heavy Wall Material Cross-Linked Polyolefin with Adhesive Semi Rigid Flame Retardant Yes Adhesive Lined Yes Shrink Ratio 3 1 Use With Wire Size 1/0 AWG to 3/0 AWG I.D. Before Shrinking 1.1 in I.D. After Shrinking 0.35 in Wall Thickness After Shrinking 0.12 in Length 9 in Shrink Tubing Properties Solvent Resistant UV Light Resistant Color Black Temp Range -55 Degrees to 110 Degrees F Package Style Individual Pieces Min Shrink Temp 248 Degrees F