20A/250V AC Locking Appliance Coupler Three linear, unloaded and pre-grounded contacts Convenient twist-lock system Ergonomic design Color: Gray Material: Copper+ABS Package Contents: 30 x Sockets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.