Helps protect children from electrical shocks Easy installation and operation (only requires a standard screw driver) More convenient than old style outlet plugs that a child can choke on Our oversized design and stronger spring make our outlet covers superior to all others. Measures 3" x 4 3/4" The best looking safety solution for outlets (choose between single and two screw style wall plates) Our Sliding Safety Plate helps prevent access to outlets. Just insert a plug and slide to the right. As soon as you remove the plug, the special cover snaps shut to protect little fingers from the outlet. Measures 3" x 4 3/4"