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, 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 usage.The SentrySafe X105 Security Safe with Digital Keypad Lock is a great security solution for your precious valuables and electronics. With solid steel construction and two live-locking bolts, the X105 offers reliable protection against theft and unauthorized use. Security safe features a soft interior lining to protect your valuables from scratches. Digital keypad lock offers set-your-own combination convenience with a programmable 1-8 digit code. The SentrySafe X105 SentrySafe Security Safe has electronic lock with override key, 2 live locking bolts, security cable feature and bolt down kit (hardware included).