The Barska Compact Keypad Depository Safe is a heavy-walled steel deposit box intended for short-term storage of cash and is ideal for restaurants or any cash-business making regular bank deposits. This depository drop safe features a 2 mm steel door, 2 mm steel walls, and two steel deadbolt locks that are disengaged using either the digital keypad or included back-up keys. Keypad or back-up key access Two solid steel deadbolt locks Lock out mode Pre-drilled hole on the bottom and back Operates on 4 AA batteries (included) Includes protective floor mat Set of emergency back-up keys and mounting hardware included 2 mm steel door and walls