Heat Shrink Tubing Chemical Resistant Thin Wall Material PVC Flexible Flame Retardant No Adhesive Lined No Shrink Ratio 2 1 I.D. Before Shrinking 3 in I.D. After Shrinking 1.5 in Wall Thickness After Shrinking 0.07 in Length 50 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 Max Temp Rating 221 Degrees F Min Temp Rating -4 Degrees F