400pcs 2:1 Shrinking Ratio 4mm Dia Heat Shrink Tubing Tube Wrap Wire Country of Manufacture: CHINA; Material: Plastic; Net Weight: 62g Package Content: 400pcs(+/-2%) x Heat Shrink Tubings; Brand: Assisi Main Color: Black; Withstand Voltage: 600V Shinking Ratio: 2:1; Temperature Level: -55- +125 Celsius Degree Length: 30mm/1.2"; Before Shrinking Diameter: 4mm/0.16"