Security Link Type Door Mounted Lock

HIGH SECURITY: Very solid construction and has sufficient weight that protect the key durable storage lockbox from breaking, hammering or prying issues, and the resettable 4 digits combinations offer up to 10000 possibilities for maximum security and safety, making it more difficult to guess a combination than 3 digits ones EASY TO USE & INSTALL: Easily set up code (default is 0000) with the instructions come along, you can screw mount the key box on the wall with mounting hardware included, or just hang it on door handle, stairs, pipe or even a fence with the detachable shackle WATERPROOF: The portable key safe box has a protective shield to cover combination area to protect it from rain, snow, freezing and dust, no rust, waterproof, will last a long time for outside & inside use