Heat Shrink Tubing, , 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 0.75 in, I.D. After Shrinking 0.38 in, Wall Thickness After Shrinking 0.03 in, Length 25 ft, Shrink Tubing Properties UV Light , Color Clear, Temp. Range -4 Degrees to 221 Degrees F, Package Style to Length, Min. Shrink Temp. 212 Degrees F, Dielectric Strength 600 V