56 Exposed work cover features 0.0625-Inch steel construction and pre-galvanized finish for longer endurance. It measures 4-11/16-Inch x 4-11/16-Inch x 1/2-Inch. Square cover with one toggle switch configuration, has cubic capacity of 10.3-Cubic-Inch. Exposed work cover comes with hardware for mounting the receptacles. Cover is UL listed and CSA certified.