Programmable 4 to 6 digit keypad code ensures optimum security for handguns and valuables. Compact size easily fits on a desk or shelf. Spring-loaded door opens immediately for quick access. Removable interior shelf is ideal for storing a second handgun or other valuables. Protective foam liner safeguards handguns and valuables from damage. Constructed of durable 16-gauge steel. Pre-drilled for easy mounting. Requires four AAA batteries (not included). Selectable audible and visible low-battery indicators. Backup key lock override.