Heat Shrink Tubing Thin Wall Material Modified Elastomer Flexible Flame Retardant No Adhesive Lined No Shrink Ratio 2 1 Use With Wire Size 6 AWG to 1 AWG I.D. Before Shrinking 0.5 in I.D. After Shrinking 0.25 in Wall Thickness After Shrinking 0.04 in Length 4 ft Shrink Tubing Properties Abrasion Resistant Acid and Alkali Resistant Fuel and Oil Resistant Solvent Resistant Color Black Temp Range -67 Degrees to 392 Degrees F Package Style Individual Pieces