Individual Cable Tubing: Tubing Type - Heat Shrink Tubing; Temperature Rating - -55 to 135 deg C -67 to 275 deg F; Wall Type - Thin Wall; Material - Polyolefin, Non-Lined; Shrink Ratio - 3-1; I.D. Expanded - 0.50 in 12.7 mm; I.D. Recovered - 0.16 in 4.0 mm; Color - Black; Length - 4.00 ft; Additional Information - Flame Retardant Material, Flammability: UL 224 All Tubing Flame; Manufacturer Series - EPS-300