Description:Heat shrink tube size: Choose your material width - from 30mm to 380mm (The flat width is equal to half of the tube circumference). Shrinkage tempe,rature : 80 ° CTemperature range : -40 ° C to 105 ° CTemperature class : 105 ° CShrinkage : ≥48±5%Rated voltage : 300v..