Large Secure Storage Space Outer secure key box is 13(L) x 8.5(W) x 4.7(H) cm, with an inner size of 12(L) x 8(W) cm, making it one-third larger than standard key boxes. It can store multiple keys, spare keys, credit cards, cash, car keys, and more. A safer alternative to leaving keys under doormats or stones, this key safe helps protect your keys. Key Emergency If you forget your digital key box password, do not force open the unit. An emergency key is provided for access. Use the emergency key to open the wall-mounted key box and reset the password. Note: Do not store the emergency key inside the key box. More Reliable & Sturdy This outdoor secure key box features a 4-digit combination lock with 10,000 possible combinations for enhanced security. Constructed with durable materials to withstand outdoor conditions, it offers reliable protection for your valuables.