Pre-cut red heat shrink tubing. Shrinks to half the original diameter when exposed to heat. WOER best quality heat shrink sleeve are great for electrical cable junction, electrical insulation, wire joints and repairs etc. Diameter:6mm,Length: 20mm,Quantity: 100 Pcs, Color:Red,Temperature Rating: 125℃,Shrink Ratio: 2:1,Flammability: VW-1,Voltage Rating: 600V.