Features This set contains many popular 2:1 heat shrink tubes of six different diameters. Ideal for garages, automotive electricians, mechanics, workshops etc. Suitable for cars, vans, RVs, etc. These heat shrink tubing are made of high quality polyolefin which is flame retardant, flexible and quickly shrinks. Different colors of heat shrink tubing are ideal for identification, concise and clear. There are total 70pcs heat shrink tubing that can meet your basic daily needs. Description: The environmentally friendly heat shrink tube does not produce toxic and harmful substances. It is widely used in wired connections and has many advantages in flame retardancy, insulation, environmental protection, softness, fast shrinkage, stable performance, etc. Features: Material: Polyolefin. Diameter: 1 mm, 1.5 mm, 2.5 mm, 3.5 mm, 5 mm. Fully Shrunk Diameter 0.65mm, 0.85mm, 1.3mm, 1.8mm, 2.5mm Shrinkage Rate: 2:1 Min. Shrink temperature: 70°C Full Shrink Temperature: 110℃ Flame Retardant: Yes Halogen-free: Yes Quantity x Diameter x Length x Colour: 14pcs x 1mm x 200mm x Yellow, Blue, Black, Green, Red, White, Transparent (2pcs each) 14pcs x 1.5mm x 200mm x Yellow, Blue, Black, Green, Red, White, Transparent (2pcs each) 14pcs x 2.5mm x 200mm x Yellow, Blue, Black, Green, Red, White, Transparent (2pcs each) 14pcs x 3.5mm x 200mm x Yellow, Blue, Black, Green, Red, White, Transparent (2pcs each) 14pcs x 5mm x 200mm x Yellow, Blue, Black, Green, Red, White, Transparent (2pcs each) Package includes: 70 x heat shrink tubes. Package List