Features: _x000D_ 1. Suitable for electrical insulation, wire bundling, colour coding, mechanical protection, wire/cable joints, DIY, RC drones and daily repairs etc _x000D_ 2. Comes with 670pcs heat shrink tube assorted in plastic box, 6 colors( Yellow, Blue, Black, Green, Red,white), 12 Specifications , satisfied for your different needs. _x000D_ 3. Provides environmental protection and abrasion resistance for electrical operation _x000D_ 4. Select the appropriate tube, put it on the wire joint and heat it to make it shrink with an air heater. _x000D_ 5. Your perfect assist for convenient and safety of family. _x000D_ _x000D_ Specification: _x000D_ Condition: 100% Brand New _x000D_ Item Type: Heat Shrinkable Tube Set _x000D_ Minimum Shrinkage Temp: +70 _x000D_ Full Shrinkage Temp: +110 maximum _x000D_ Operating Temperature: -55 to + 125 _x000D_ Tensile Strength: 10.4Mpa _x000D_ Dielectric Strength: 15 kV / mm _x000D_ Flammability: Flame Retardant _x000D_ Item Shape: Round/Flat _x000D_ Cutting Method: Scissors or sharp knife _x000D_ Material: Polyolefin _x000D_ Shrinkage Ratio: 2:1 (will shrink to 1/2 its supplied diameter) _x000D_ Operating Temperature: -55C to + 125C _x000D_ Length: Approx. 38mm / 1.5in _x000D_ Internal Diameter:1mm/1.5mm/2mm/2.5mm/3mm/3.5mm _x000D_ Length: Approx. 45mm / 1.8in _x000D_ Internal Diameter:4mm/5mm/6mm/7mm/10mm/13mm _x000D_ _x000D_ Package List: _x000D_ (Quantity - Internal Diameter - Single Length) _x000D_ 60pcs - 1.0mm - 38mm Red _x000D_ 60pcs - 1.5mm - 38mm Black _x000D_ 50pcs - 2.0mm - 38mm Yellow _x000D_ 50pcs - 2.0mm - 38mm Black _x000D_ 50pcs - 2.5mm - 38mm Red _x000D_ 50pcs - 2.5mm - 38mm Blue _x000D_ 45pcs - 3.0mm - 38mm Black _x000D_ 45pcs - 3.0mm - 38mm white _x000D_ 30pcs - 3.5mm - 38mm Green _x000D_ 30pcs - 3.5mm - 38mm Blue _x000D_ 40pcs - 4.0mm - 45mm Black _x000D_ 40pcs - 4.0mm - 45mm Red _x000D_ 30pcs - 5.0mm - 45mm Blue _x000D_ 25pcs - 6.0mm - 45mm Green _x000D_ 25pcs - 7.0mm - 45mm Blue _x000D_ 20pcs - 10.0mm - 45mm Black _x000D_ 20pcs - 13.0mm - 45mm white _x000D_ _x000D_ Note: _x000D_ 1. Please allow slight error due to manual measurement. Thanks for your understanding. _x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.