Before Shrink Dia: 3mm/0.12' ; Flat Width: 7.4mm/0.29' ; Total Length: 5m/16ft Operating Temperature : -40~+125(-40°F~257°F) ; Voltage Rating: 1000V Heat shrink tubing is good useful, of the specification of good electrical insulation, corrosion resistance and high temperature resistance. Widely Applications: Electrical Insulation, Wire Protection, Cable Bonding, Data Cable Decoration, Color-Coding, Wire Marking, Wire Bundling & more. Package Content: 1pcs x Heat Shrink Tubing