[EXECELLENT QUALITY] - Direct factory with excellent quality control, STRONG & DURABLE. The copper core of our heat shrinkable joints is made of high quality tinned copper, in addition to being extremely conductive, it is easier to flatten and grip the wire
[WATERPROOF] - Waterproof insulated, the polyolefin tubing on the outside and the hot-melt glue inner layer provide excellent water resistance when heated. The polyolefin tube reduces in size and the adhesive flows within the insulation
[PERFECT FOR] - Perfect use for the repair technician on the electrical wiring. Seamless copper barrel design provides high tensile strength and mechanical damage resistance, translucent heat shrink tubing eliminates the issue of the barrel opening, high elasticity keeps steady performance
[EASY USE] - Take two wires you wish to join. Remove the wire insulator, pick the terminal color you want. Insert the wire into the terminal one at the time and crimp by crimping tool, insert another terminal and crimp. Use air gun to apply heat on the heat shrink connectors
[PACKAGE INCLUDES] - 200pcs Heat Shrink Butt Connectors. 3 Sizes, 90pcs Red, 9Opcs Blue and 20pcs Yellow.