Specifications:Material: PolyolefinSupplied internal diameter: 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mmFully shrunk internal diameter: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mmShrinkage Ratio: 2 : 1 (will maximum shrink to 1/2 of its supplied diameter)Total length: 12.6mMinimum Shrinkage Temp: +70°CFull Shrinkage Temp: +110°C maximumOperating Temperature: -55°C to +125°CTensile strength: 10.4 MpaDielectric strength: 15 kV/mmFlammability: Flame RetardantSupplied format (round or flat): Product is supplied flatCutting method: Scissors or sharp kni-feManufacture specification: ISO9001Approvals: UL ApprovedQuantity: 280pcs Features:-This is 280pcs assortment ratio 2:1 heat shrink tubing tube sleeving wrap kit-Big collection of heat shrink tubing, 5colors, 8 Specifications, 280pcs-5 Color: Yellow, Blue, Black, Green, Red. Package Included:1 x Plastic box40pcs x 1.0 x 45mm Yellow (Quantity x Supplied internal diameter x Single length)40pcs x 2.0 x 45mm Blue40pcs x 2.0 x 45mm Black30pcs x 3.0 x 45mm Green25pcs x 4.0 x 45mm Red25pcs x 4.0 x 45mm Black20pcs x 5.0 x 45mm Black20pcs x 6.0 x 45mm Yellow10pcs x 8.0 x 45mm Red10pcs x 10.0 x 45mm Green10pcs x 10.0 x 45mm Blue10pcs x 10.0 x 45mm Black