uxcell Wire Wrap Sleeve 1mm Dia 40mm Long Heat Shrink Tubing 600pcs Black Country of Manufacture: CHINA; Material: Polyolefin; Net Weight: 33g Package Content: 600pcs(+/-2%) x Heat Shrink Tubing; Main Color: Black Inner Diameter Before Shrinking: 1mm/ 0.04"; Inner Diameter After Shrinking: 0.5mm/ 0.02" Temperature Range (Max.): 125 Celsius Degree; Each Length: 40mm/ 1.6" Shrink Ratio: 2:1; Flammability: VW-1