Shrink-On Tubing Individual Cable Tubing: Tubing Type - Heat Shrink Tubing; Voltage - 1 kV; Temperature Rating - -40 to 75 deg C (-40 to 167deg F); Wall Type - Heavy Wall; Material - Polyolefin, Adhesive Lined; Shrink Ratio - 4-1; I.D. Expanded - 0.63 in. (16.0 mm); I.D. Recovered - 2.20 in. (55.9 mm); Wire Max - 1000 kcmil; Wire Min - 250 kcmil; Color - Black; Length - 9 in.