30pcs Professional Robot Mower Cord Connectors for Extending Robot Mower Boundary Line. Includes 6 snap locks for added stability and durability. Features a convenient knife contact point design that eliminates the need for wire stripping. Made from ABS insulation material, the connectors are strong, resistant to breakage, filled with gel, flame retardant, waterproof, and moisture-proof, creating a sealed environment for improved safety and secure connections. Easy to use—simply insert the wire end directly into the connector hole and crimp with pliers to join two wires quickly and reliably. Suitable for use with robot lawn mowers, electric motors, electrical controllers, power supplies, household appliances, cable management, lighting, and mechanical cable connections. Ideal for both indoor and outdoor applications. Supports connection of up to three wires. Color: Blue & Red. Material: Plastic. Package Includes: 30pcs Waterproof Cable Connectors, 6 x Snap Locks. Note: Lighting and display differences may cause slight color variations. Measurement may vary by +/- 1-3cm.