Heat Shrink Tubing, Thin Wall, Material Polyolefin, Flexible, Flame Retardant Yes, Adhesive Lined No, Shrink Ratio 2:1, Use With Wire Size 4/0 AWG to 500 MCM, I.D. Before Shrinking 1 in, I.D. After Shrinking 0.5 in, Wall Thickness After Shrinking 0.04...