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 6 AWG to 2/0 AWG I.D. Before Shrinking 0.75 in I.D. After Shrinking 0.24 in Wall Thickness After Shrinking 0.09 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