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 - White; Additional Information - Wall Thickness 0.025 in; Manufacturer Series - FIT-221