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 - 0.12 in (3.2 mm); I.D. Recovered - 0.06 in (1.5 mm); Color - Blue; Additional Information - Wall Thickness 0.02 in; Manufacturer Series - FIT-221