This safe is the STRONGEST safe in its class. The LockState LS-19EPL has one master and one user (3-6 digits). The user allows you to grant temporary access to an individual with an easy to add/change feature. Ideal for hotels, condos, homes and businesses. Specifications Wall thickness 2mm Door thickness 5mm 2 locking bolts 5/8" External Dimensions: 7.87H X 13.78W X 8D inches Internal Dimensions: 7.48H X 11.81W X 7.78D inches WEIGHT: 30 Pounds Motor driven electronic lock. Manual override key (2 keys supplied). Pre-drilled holes for mounting to the floor or wall (hardware included). 1 year warranty. Powder coated heat treated steel. LED status display. 4 AA batteries inserted on the inside of the safe. Not rated as fire proof".