Diameter(Before Shrinking): 12.7mm / 0.5"; Flat Width: 20mm / 0.75"; Length(approx.): 5M / 16.4ft; Shrink rate: 2:1. Operating Temperature: -55 to 125 Degree Celsius Minimum Shrinkage Temp: +70 Degree Celsius; Full Shrinkage Temp: +125 Degree Celsius maximum. Heat shrink tubing is good useful, of the specification of good electrical insulation, corrosion resistance and high temperature resistance. Softness, stable performance, low shrinkage temperature, fast shrinkage Widely Applications: Electrical Insulation, Wire Protection, Cable Bonding, Data Cable Decoration, Color-Coding, Wire Marking, Wire Bundling & more.
Specifications:

Material: Polyethylene
Shrinkage rate: 2:1 ( will maximum shrink to 1/2 of its supplied diameter )
Minimum Shrinkage Temp: +70 Degree Celsius
Full Shrinkage Temp: +125 Degree Celsius maximum
Operating Temperature:-55 to 125 Degree Celsius
Rated voltage: 1000V
Dielectric strength: 1 KV
Item Shape: Round/Flat