SentrySafe X105 Security Safe with Digital Keypad, 0.9 Cubic Feet (Large) Protect your valuables with this home security safe, complete with carpeted interior, removable shelving, and power cord access for security while charging your devices; use as a personal home safe, laptop safe, or jewelry safe Set your own digital combination security safe for protection from theft or burglary Home safe features two live-locking bolts, steel construction, concealed hinges, and bolt down hardware Exterior: 16.9 in. W x 14.6 in. D x 8.9 in. H; Interior: 16.8 in. W x 11.6 in. D x 8.7 in. H; large 0.98 cubic foot capacity; weighs 24 pounds For optimal performance, SentrySafe recommends the use of four high-quality, name branded, alkaline AA batteries with an expiration date of 8-10 years from the current year. Generic and rechargeable batteries often do not have the lifespan needed to support long term usage