Lion Locks 1500 Key Storage Realtor Lock Box with Set-Your-Own Combination, (24 Pack, Black) Hanging key storage box with combination access to multiple keys Hangs from doorknob, fence, or just about anywhere Personalized, adjustable combination lock with 4 dials offers up to 10,000 combination possibilities for optimal security Reinforced body withstands hammering and sawing Rust-free and life-time product guarantee