This 5101 Security Safe features a 0.27 cubic feet interior storage capacity, programmable digital lock entry, two emergency keys, two solid steel, live-lock bolts, concealed hinges and recessed door to prevent prying that gives you additional protection against theft. This safe has a scratch-resistant, powder-coated finish and predrilled mounting holes with all hardware and instructions included. Carpeted floor protects valuables from damage. Safe is 5101DOJ approved for firearms security. Safe provides security for your valuables and essential documents, giving you peace of mind that comes from being prepared for unauthorized tampering or an invasion of your home or office. Internal dimensions are 11.9" x 5.1" x 7.8". It comes with four AA batteries.