Fangrui Product Details Keep Safe - The 2-core Connector Is Made Of Quality Materials, Which Has Certain Thermal Stability And Makes The Plug And Wear-. The Flame-retardant Insulating Material Is Used To Modify Copper, Which Has Long Service Life, No , Anti-aging, Voltage Resistance, And Resistance. Easy To Use - Reduces Wiring Time By ! Just Lift Up The Lever, Insert The Stripped Wire, And The Lever Closed, Holds Tight, And Make A Solid Connection. Practical Tidy - Compatibility To 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. Reusable Efficient - Suitable For Flexible Wires And Hard Wires. Each Connector Designed With For Different Wires. And Different Diameters Can Be Connected For Safety. Widely Used - They Work With Almost Every Gauge Of Normal Household Wiring: Ceiling Fans, Sockets, Switches, Cars, Motorcycles, Ships, Loudspe