Heat Shrink Tubing Chemical Resistant Thin Wall Material PVC Flexible Flame Retardant No Adhesive Lined No Shrink Ratio 2 1 Use With Wire Size 4 AWG to 3/0 AWG I.D. Before Shrinking 0.63 in I.D. After Shrinking 0.31 in Wall Thickness After Shrinking 0.03 in Length 25 ft Shrink Tubing Properties UV Light Resistant Color Black Temp Range -4 Degrees to 221 Degrees F Package Style Cut to Length Min Shrink Temp 212 Degrees F Dielectric Strength 600 V