Cold Shrink Insulator, Medium Wall, Material EPDM Rubber, Flexible, Flame Retardant No, Adhesive Lined No, Shrink Ratio 2:1, Use With Wire Size 900 MCM to 1000 MCM, I.D. Before Shrinking 2.67 in, I.D. After Shrinking 1.27 in, Wall Thickness After Shrinking 0.18 in, Length 6 in, Shrink Tubing Properties UV Light , Color Black, Temp. Range -40 Degrees to 194 Degrees F, Package Style Individual Pieces, Dielectric Strength 1,000 V, Max. Temp. Rating 194 Degrees F