Shrink-On Tubing Individual Cable Tubing: Tubing Type - Heat Shrink Tubing; Temperature Rating - -55 to 110 deg C (-67 to 230 deg F); Wall Type - Medium Wall; Material - Polyolefin; Shrink Ratio - 3-1; I.D. Expanded - 1.50 in. (38.1 mm); I.D. Recovered - 0.50 in. (12.7 mm); Wire Max - 1/0 AWG; Wire Min - 250 kcmil; Color - Black; Length - 4.00 ft