This professional heat shrink tube set with 2:1 shrink ratio is perfect for protecting the point of connection from any kind of elements.Features:This polyolefin material kit contains 580 pieces shrink tubing in 6 colors.Big collection of heat shrink tubing 11 specifications with different sizes.Perfect for protecting the point of connection from any kind of elements.2:1 shrink ratio. High expansion ratio makes it possible to repair most damaged cable jackets.Wide application for electrical insulation, wire bundling, colour coding, mechanical protection, wire/cable joints and repairs etc.Durable and compact translucent storage box for easy access and carry.Specifications:Color: Yellow and Blue and Black and Green and Red and TransparentMaterial: PolyolefinSupplied Internal Diameter: 1mm, 1.5mm, 2mm, 2.5m, 3mm, 3.5mm, 4mm, 5mm, 6mm, 8mm, 10mmFully Shrunk Internal Diameter: 0.5mm, 0.75mm, 1mm, 1.25mm, 1.5mm, 1.75, 2mm, 2.5mm, 3mm, 4mm, 5mmLength: Approx. 38mm, 45mmSpecifications: 11 KindsQuantity: 580PCS80 x 1.0 x 38mm Black Heat Shrink Tube80 x 1.5 x 38mm Yellow Heat Shrink Tube50 x 2.0 x 38mm Blue Heat Shrink Tube50 x 2.0 x 38mm Black Heat Shrink Tube30 x 2.5 x 38mm Black Heat Shrink Tube30 x 3.0 x 38mm Green Heat Shrink Tube30 x 3.0 x 38mm Transparent Heat Shrink Tube30 x 3.5 x 38mm Black Heat Shrink Tube40 x 4.0 x 45mm Black Heat Shrink Tube30 x 4.0 x 45mm Red Heat Shrink Tube30 x 5.0 x 45mm Black Heat Shrink Tube20 x 6.0 x 45mm Yellow Heat Shrink Tube20 x 8.0 x 45mm Red Heat Shrink Tube20 x 10.0 x 45mm Blue Heat Shrink Tube20 x 10.0 x 45mm Black Heat Shrink Tube20 x 10.0 x 45mm Transparent Heat Shrink TubeShrink Ratio: 2:1 (Maximum shrink to 1/2 of its internal diameter)Minimum Shrinkage Temperature: and70Full Shrinkage Temperature: and110C maximumOperating Temperature: -55 to and125Dielectric Strength: 15 kV/mmTensile Strength: 10.4 MpaFlammability: Flame RetardantSupplied Format: (1mm, 1.5mm, 2mm, 2.5m, 3mm, 3.5mm, 4mm, 5mm, 6mm)Round, (8mm, 10mm)FlatCutting Method: Scissors or KnifeManufacture Specification: ISO9001Approvals: UL ApprovedSize of the Heat Shrink Tube Storage Box: 195 x 130 x 35mm / 7.68 x 5.12 x 1.38"Package Size: 19.5 x 13 x 3.5cm / 7.68 x 5.12 x 1.38in Package Weight: Approx. 220g / 7.78ozPackage List:580 x Heat Shrink Tube1 x Storage Box