[High quality] -ABS quick connector, electrolytic copper, the shell is very sturdy, not easy to break, and the insulation is stronger.[High security] - Different from others quick wiring connectors, these quick splice wire connectors are flame retardant, moisture resistant and provide added safety.[Easy to connect] - No soldering or stripping of wires is required, just insert the blue cover and tighten it to connect. Up to 3 wires with a diameter of 0.5 mm to 1.5 mm can be connected.[Waterproof connection and stable] - Through continuous design optimization, this quick cable connector will be firmly connected to the waterproof cable, which is safer and will not be disconnected.[Applications] - The cable connectors can be used in many wiring projects, for example. Outdoors, gardens, lawn mowing robots, invisible dog fences, underground placement, also suitable for underground installation, etc.