Knight Box 1500 Hanging key Storage Box with Combination, Black Hanging key storage box with combination, Hang the key storage box on any door knob, fence, railing. Adjustable combination lock with 4 dials offers up to 10,000 combination possibilities. Safe and secure way to store keys for kids coming home from school. Allow contractors or others access to your home and when they're done the access code can be changed. Who hasn't locked themselves out of their house. Safe way to store extra key. Great for the Elderly, Birthday, Graduation Homeowners or Parents LIFETIME Product Guarantee, Rust Free, Reinforced body adds extra level of protection which helps withstand hammering and sawing