Our small plug lockout prohibits the insertion of electrical cords into outlets during maintenance or repair activities. Crafted in the USA from durable plastic, it has dimensions of 3½ ″ L x 2½ ″ W. The universal fit closure accepts cords up to ½ ″ in diameter and plugs with dimensions up to 2″ W x 3″ L. The device can hold three padlocks featuring shackles up to 9/16″ in diameter.