The heat shrinkable tube is heat shrinkable, has good tight contact performance, bright and beautiful surface treatment, saves time, no soldering and no crimping. You only need a heat gun to complete the joint, which is faster and easier. 2:1 heat shrink tubing ratio. Typical operating temperature: -55C to +125C, up to 600V, a variety of premium heat shrink tubing sizes to choose from, they can be used for solder joint protection, iron wire marking, resistance . Capacitive protection for insulation and safety. Quick 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-shrinkable 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. 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 break, 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 cannot change to another place, the whole operation must be done at once. Color: as the picture Amount : 1 set of 328 pieces 120PCS140mm (yellow, black, orange, green) 60PCS240mm (yellow, black, orange, blue) 32PCS340mm (yellow, black, orange, green) 32CS440mm (yellow, black, orange, blue) 32CS6 40mm (yellow, black, orange, green) 20PCS880mm (yellow, black, orange, blue) 16PCS1080mm (yellow, black, orange, green) 16PCS1480mm (yellow, black, orange, blue)