Heat Shrink Tubing Food Grade Thin Wall Material Acrylate Olefin Flexible Flame Retardant No Adhesive Lined No Shrink Ratio 2 1 Use With Wire Size 12 AWG to 8 AWG I.D. Before Shrinking 0.38 in I.D. After Shrinking 0.19 in Wall Thickness After Shrinking 0.03 in Length 6 in Shrink Tubing Properties Food Grade Color Black Temp Range -67 Degrees to 250 Degrees F Package Style Individual Pieces Min Shrink Temp 250 Degrees F Dielectric Strength 1 800 V