Specifications:Made of high quality material, they are durable, anti-rust and long-lasting.There are 12 specifications, which can meet your different needs.It can be used for wire connection, insulation protection of solder joints, wire protection, metal corrosion prevention and other purposes.Item Name: Heat Shrink Tube SetMaterial: PolyolefinWorking Temperature: -55 Celsius Degree - 125 Celsius DegreeFeatures: Assorted Sizes, Insulated, Soft, DurableSize: Length: 45mm/1.77" (Approx.)Notes:The quantity is about 530pcs, due to manual calculation, quantity might has 5-10pcs more or less. Hope you can understand, thank you.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:20 x Yellow 6mm Heat Shrink Tube30 x Black 5mm Heat Shrink Tube50 x Red 4mm Heat Shrink Tube50 x Black 4mm Heat Shrink Tube60 x Green 3mm Heat Shrink Tube80 x Blue 2.5mm Heat Shrink Tube80 x Black 2mm Heat Shrink Tube80 x Yellow 1.5mm Heat Shrink Tube20 x Blue 10mm Heat Shrink Tube20 x Green 10mm Heat Shrink Tube20 x Black 10mm Heat Shrink Tube20 x Red 8mm Heat Shrink Tube