1.*DURABLE CONSTRUCTION - This safe box is constructed of heavy-duty carbon steel structure with a thickened front door and body, which can resist the impact of hands and mechanical tools. Sturdy bolts and hinges improve its theft-proof performance. 2.*ELECTRONIC LOCK SYSTEM - With a reliable electronic lock system, the home safe effectively keeps children and unauthorized users from gaining access. It can be programmed with two sets of codes and provides two override keys for emergency use. 3.*ADDITIONAL SECURITY - In addition to the advanced electronic lock system, the jewelry safe comes with the pry-proof locking bolts to provide double protection for valuables. 4.*SIMPLE INSTALLATION - With two pre-drilled holes and all necessary mounting hardware, this electronic safe is designed with simple installation. The black exterior finish gives it a handsome look that coordinates with any home or office setting. 5.*EXTENSIVE USING - Featuring stable construction and a secure lock system, the safes and lock boxes are extensively applied in the home, hotel, office, and other business places. They are suitable for storing collections, handguns, jewelry, etc. ******************************************************************************************************* *Specifications Material: Carbon Steel Capacity: 1.1 Cubic Feet/31.15L External Size (L*W*H): 18.1""x16.1""x10.6""/46x41x27cm Internal Size (L*W*H): 16.81""x12.17""x8.94""/42.7x30.9x22.7 cm Door Thickness: 0.12""/3 mm Box Body Thickness: 0.05""/1.2 mm ******************************************************************************************************* *Pakcage Content 1 x Safe Box 2 x Keys 4 x Expansion Screws 1 x Manual