Super Blue hard body box. Direct substitute for fiberglass boxes. Super Blue will not break when hit with a hammer. The box has an L bracket which combines the mounting feature of a metal bracket plus the angled nails for quick mounting. Designed and UL approved to support a ceiling fan of up to 35 lb. and a light fixture of 50 lb. Comes complete with a snap on cover to protect wires from ceiling paint or drywall during construction. 4" x 7" x 4" x 3", 24.5 cu. in. volume.