Heat Shrink Tubing, Medical Grade, Thin Wall, Material Acrylate Olefin, Flexible, Flame Retardant No, Adhesive Lined No, Shrink Ratio 2:1, Use With Wire Size 28 AWG to 26 AWG, I.D. Before Shrinking 0.09 in, I.D. After Shrinking 0.05 in, Wall Thickness After Shrinking 0.02 in, Length 6 in, Shrink Tubing Properties Abrasion , Medical Grade, UV Light , Color Black, Temp. Range -67 Degrees to 250 Degrees F, Package Style Individual Pieces, Min. Shrink Temp. 250 Degrees F