1、Suitable for electrical insulation, wire bundling, colour coding, mechanical protection, wire/cable joints and daily repairs, etc. 2、The heat shrink tube would shrink and wrap the protected objects tightly if heated under high temperature. 3、Easy to use - select the appropriate shrink tube, put it on the wire joint and heat it with an air heater to make it shrink. 4、Assorted heat shrink tube sizes satisfy your different needs. 5、Flame retardant, waterproof, corrosion resistant. 80 x Heat Shrink Tube 1.5 x 45mm Yellow80 x Heat Shrink Tube 2.0 x 45mm Blue80 x Heat Shrink Tube 2.0 x 45mm Black60 x Heat Shrink Tube 3.0 x 45mm Green50 x Heat Shrink Tube 4.0 x 45mm Red50 x Heat Shrink Tube 4.0 x 45mm Black30 x Heat Shrink Tube 5.0 x 45mm Black20 x Heat Shrink Tube 6.0 x 45mm Yellow20 x Heat Shrink Tube 8.0 x 45mm Red20 x Heat Shrink Tube 10.0 x 45mm Green20 x Heat Shrink Tube 10.0 x 45mm Blue20 x Heat Shrink Tube 10.0 x 45mm Black Item Type: Heat Shrink TubeMaterial: PolyolefinInner Diameter: 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mmShrink Ratio: 2:1Color: Black, Yellow, Green, Red, BlueQuantity: 530pcs (1 pack)Minimum Shrinkage Temperature: ≥84°CFull Shrinkage Temperature: ≥120°COperating Temperature: -55°C ~ +125°CTensile Strength: 10.4MPaDielectric Strength: 15KV/mmManufacturing Specification: ISO9001Certification: UL certification