Hangs on any doorknob, fence, railing, or pipe. Key boxes open quickly with a simple combination you choose and set yourself. Multiple keys can be stored inside. 1 key can be attached to the box lid so it will not be dropped, carried off, or lost. Key boxes are rustproof, durable, and warranted against defects in materials, and workmanship for 1 year. Hanging shackle has protective cover so it will not scratch. Assorted colors may vary with each order.