300pcs Wrap Wire Black 3.5mm Dia Heat Shrink Tube Sleeving 2:1 Country of Manufacture: CHINA; Brand: DMiotech; Material: Polyolefin Net Weight: 33g; Package Content: 300pcs(+/-2%) x Heat Shrinkable Tube; Main Color: Black Rated Voltage: 600V; Temperature Level: 125C; Complete Shrink Temperature: 110C Temperature Range: 55C-125C; Lateral Shrinkage: &gt;=50%; Longitudinal Shrinkage: &lt;=8% Diameter: 3.5mm /0.14inch(Before ) 1.75mm/0.07inch(After); Shrink Ratio: 2:1; Total Length(each): 30mm