Shrink-On Tubing Individual Cable Tubing: Tubing Type - Heat Shrink Tubing; Temperature Rating - -55 to 135 deg C (-67 to 275 deg F); Material - Polyolefin, Non-Lined; Shrink Ratio - 2-1; I.D. Expanded - 0.18 in (4.5 mm); I.D. Recovered - 0.09 in (2.2 mm); Color - Black; Length - 500.00 ft; Manufacturer Series - FIT-221