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 - 2-1; I.D. Expanded - 0.50 in 12.7 mm; I.D. Recovered - 0.25 in 6.3 mm; Color - Clear; Length - 4.00 ft; Additional Information - Package: 250x4.00 ft; Manufacturer Series - Dry-Shrink HSTT