16mm Dia 80mm Long Polyolefin 2:1 Heat Shrink Tubing 100pcs Black Country of Manufacture: CHINA; Material: Polyolefin; Net Weight: 170g Package Content: 100pcs(+/-2%) x Heat Shrink Tubing; Main Color: Black; Flat Width: 26mm/ 1"(Before Shrinking) Thickness: 0.3mm (Before Shrinking); Temperature Range: 125C; Round Inner Diameter (Before Shrinking): 16mm/ 0.6" Round Inner Diameter (After Shrinking): 8mm/ 0.3"; Shrink Ratio: 2:1; Flammability: VW-1 Rated Voltage: 600V; Each Length: 80mm/ 3"