Cable Connector Set: 25 professional lawn mower wire connectors for extending robotic lawn mower boundary lines. For use with most lawn mower brands on the market. Waterproof Cable Connector: The waterproof nylon electrolytic copper cable connector  High quality, safe and reliable, the shell is very sturdy, not easy to break, and has better insulation. Easy to use: Simply insert both ends of the wire as far as they will go, then pinch them together with pliers. After installation, tighten the wire until it clicks, then cut it. Universal connector: The boundary line connector of the lawn mower cable connector can be used universally for lawn mowers from all manufacturers and is an ideal replacement part for robotic lawn mowers. Versatile: The lawn mower cable connector is not only suitable for robotic lawn mowers, but also for electric motors, electrical controllers, power supplies, household appliances, lighting, and mechanical cable connectors.