1-gang multi-purpose electrical box. Mounting means: captive nails, side flange, internal screws. Versatile non-metallic design that works on wood or steel studs, in new or old work. Simple, fast installation - vertical or horizontal. Captive nails and screw guides for vertical or horizontal mounting. Break-off flange for new or old work. Large capacity to hold dimmers and larger switches. Suitable for wood and steel studs. Internal screw guides for installation. Internal mounts allow to change depth of installation.