Heat Shrink Tubing, Thin Wall, Material Polyolefin, Flexible, Flame Retardant Yes, Adhesive Lined No, Shrink Ratio 2:1, Use With Wire Size 20 AWG to 18 AWG, I.D. Before Shrinking 0.19 in, I.D. After Shrinking 0.09 in, Wall Thickness After Shrinking 0.02 in, Length 100 ft, Shrink Tubing Properties Acid and Alkali , Solvent , Color Clear, Temp. Range -67 Degrees to 275 Degrees F, Package Style to Length, Min. Shrink Temp. 212 Degrees F, Dielectric Strength 900 V