SAFE AND DURABLE: This key lock box with a 4-digit code that allows you to set your own combo code with 10000 unique choices, which ensure security and your keys safe. It is tightly sealed and waterproof, durable enough for the house key and outside key storage; EASY TO INSTALL AND USE: There are 2 mounting options for this combination lockbox for keys. You can mount it on the wall with supplied plugs and screws; besides, you can hang it anywhere easily including doorknob, metal fence, railing, and pipe, no tools needed; LARGE CAPACITY: The portable key security gym locker box provides large internal space for holding up to 5 house keys [shorter than 3.35 inches]; When you're traveling or out for business, you can put your house keys, car keys, or access cards in; WIDELY RANGE OF APPLICATION: By using this 4-digit key lock box that allows you or others access the key at any time, which perfectly suitable for daily activities, friends, relatives, home services, emergency entry, pet sitters and real estate business, etc; BUY WITH TOTAL CONFIDENT: offers a 100% satisfaction guaranteed or 30 days money-back guarantee. If you have any questions about the key lockbox, please feel free to contact us for details.