High Quality: This gun safe lock is made of high-grade zinc alloy fire-resistant panel, enhanced durability, and 3 false codes to prevent forced entry and lockout mode Easy to Use: The safe box Lock are able to set 3 to 8 numeric passwords, Confirm key "#", and Clear key"?" (Clear all currently entered passwords) Wide Application: This gun safe lock replacement fit all kinds of home safes lock box, rifle safes, pistol safes, hotel safe, cabinet safes, and drop slot safe Package Included: Complete safe lock sets; lock panel x1, solenoid x1, override keys x2, reset line x2, and motherboard (PCB) x1; this rifle safe lock is operated by an electromagnetic locking mechanism Note: The package didn't include the battery, please use the 9V ALKALINE battery