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 laptop safe, jewelry safe, or medication 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 1.0 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