The heat shrinkable tube is heat shrinkable, has good tight contact performance, bright and beautiful surface treatment, saves time, no welding and no crimping. You only need a heat gun to complete the joint, which is faster and easier. Heat shrink tube ratio 2:1. Typical operating temperature: -55C to +125C, up to 600V, a variety of sizes of premium heat shrink tubes to choose from, they can be used for solder joint protection, wire marking, resistance. Capacitive protection for insulation and safety. Fast and easy to use, it has the advantages of good electrical insulation, good sealing, corrosion resistance, etc. It is widely used in cable maintenance, electrical insulation, sorting out messy cables and wires, and lamp wiring. The heat shrink tube is easy to store and does not affect the internal conductivity after connection. The wire is easy to insert and can be bent after connection without crimping. Le fil est facile insrer et peut tre pli aprs la connexion sans sertissage. Just control the temperature with a heat gun. Wire connectors are widely used, and heat shrink connectors have compact design and wear-resistant functions, and can be used in various applications such as wire breakage, electrical insulation, mechanical protection, wire width, wire connection, wire/cable joints, daily maintenance, etc. Note: The heat shrinkable tube will not change after shrinking once, so it can only be shrunk once, not twice. If it is heated, you can not change to another place, the whole operation must be done at once. Color: as the picture shown Quantity: 1 set of 328pcs 120PCS140mm (yellow, black, orange, green) 60PCS240mm (yellow, black, orange, blue) 32PCS340mm (yellow, black, orange, green) 32CS440mm (yellow, black, orange, blue) 32CS640mm (yellow, black, orange, green) 20PCS880mm (yellow, black, orange, blue) 16PCS1080mm (yellow, black, orange, green) 16PCS1480mm (yellow, black, orange, blue)Yeuri High Quality: High quality large heat shrink tubing, perfect for electrical insulation, cable joints and daily repairs, wire bundling, mechanical protection. Safe Material: Heat shrink material that does not contain heavy metal and other harmful materials, excellent flame retardancy and insulation performance, soft, stable performance, long-lasting insulation protection. Easy to Use: Please stop wrapping to connect the cables with electrical tape and not secure enough.