Feature:1. It is easier to choose the correct heat shrink connector, and the different colorcoded tubes with wire gauge markings, and can be easily identified.2. The outer layer of polyolefin tube and inner layer of hot melt adhesive provide excellent waterproof performance. The size of the polyolefin pipe is reduced, and the adhesive will flow inside the insulating material when heated.3. The thick barrel ensures firm and reliable crimping every time to prevent wire failure, increase current, reduce voltage drop and reduce equipment downtime. The wire never slips out of the connector.4. The seamless copper tube design provides high tensile strength and extreme stretch and resistance to mechanical damage. The translucent heatshrinkable tube eliminates the tube opening problem, and high elasticity maintains stable performance.5. Can be used to connect internal wiring. Can be used on cars, moped, quad bike, tricycle, caravan, motorcycles, ATVs, scooters, boat, snowmobile etc.Specification:Item Type: Butt ConnectorMaterial: Plastic and metalStandard: 1 Set(200pcs)Red Butt Connector HSC-1 (90pcs)Blue Butt Connector HSC-2 (90pcs)Yellow Butt Connector HSC-3 (20pcs)Operating Temperature: -55 - 125Initial Shrinkage Temperature: 80Complete Shrinkage Temperature: 130Application: Can be used to connect internal wiring. Can be used on cars, moped, quad bike, tricycle, caravan, motorcycles, ATVs, scooters, boat, snowmobile etc..Package List:1xButt Connector kit(200PCS)