Ⅰ. Keep Safe - The 2-core connector is made of materials, which has certain thermal stability and makes the plug durable and wear-resistant. Flame-retardant insulating material is used to modify copper, which has long service life, no corrosion, anti-aging, voltage resistance, and electric shock resistance. Ⅱ. Easy to use - Reduces wiring time by 70%! Just lift up the lever, insert the stripped wire, and press the lever closed, holds tight, and make a solid connection. Ⅲ. Practical & Tidy - Compatibility to various of wire such as solid, strand and flexible wire, Fits well for 18-22 AWG cable wire. They do not mess up the wire ends nearly as much, keeping electrical boxes relatively roomy and not having to twist a fistful of copper wire together. Ⅳ. Reusable & Efficient - Suitable for flexible wires and hard wires. Each connector designed with independent shrapnel for different wires. and different diameters can be connected for safety. Ⅴ. Widely used - They work with almost every gauge of normal household wiring: ceiling fans, sockets, switches, cars, motorcycles, ships, loudspeakers, lamps, and more. Widely used in building wiring to save valuable space for all required connections. Ⅵ. Weight: 0.8g/pc Ⅶ. Material: ABS Ⅷ. colour: As shown Ⅸ. Package Contents: 50 x Double-wire Push-in Connector with Locking Buckle