Heavy gauge welded steel construction, meets ANSI/BIFMA shelf standards. Four adjustable shelves on 2" centers, plus raised bottom shelf. Three sets of hinges on each door. The cabinets are equipped with a keyless electronic coded locking system. The keypad also keeps a record of the day, date and time of day when the cabinet is accessed. Exterior batttery pack that can be plugged into the keypad and key included. Powder coat paint finish.