Features:_x000D_ _x000D_ The set includes 200 pcs black heat shrinking tube of different sizes. _x000D_ The heat shrinking tube has a maximum shrinking ratio of 2:1 at the temperature of +110. _x000D_ These heat shrinking tube has a large tensile strength,very durable. _x000D_ The dielectric strength of the tube is 15KV/mm that makes it is more safe to use. _x000D_ The heat shrinking tube can work normally between -55~125. _x000D_ _x000D_ Specification:_x000D_ Size:1mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm_x000D_ Shrinkage Ratio:2:1 ( Will Maximum Shrink To 1 / 2 of Its Supplied Diameter )_x000D_ Minimum Shrinkage Temp: +70_x000D_ Full Shrinkage Temp: +110_x000D_ Operating Temperature: -55 To + 125_x000D_ Tensile Strength: 10.4 Mpa_x000D_ Dielectric Strength: 15 Kv / Mm_x000D_ Flammability: Flame Retardant_x000D_ Supplied Format ( Round or Flat ): Product is Supplied Flat_x000D_ Cutting Method: Scissors or Sharped Knife_x000D_ _x000D_ Package List: _x000D_ 200 x Heat Shrinking Tube_x000D_ _x000D_ Note:_x000D_ 1. As different computers display colors differently, the color of the actual item may vary slightly from the above images._x000D_ 2. Please allow 1-3mm differs due to manual measurement.