4-Digit wall-mounted key storage security lockDo you need a high security key storage box to protect your keys? Our key lock box adopts hard aluminum alloy for durability and the environmental cover paint gives this safe lock box rust proof, waterproof and corrosion resistant quality. You can set your own 4 digit combination code lock box from 10000 combination code options, solid lockbox body also can withstand hammering and sawing. The shutter door protects combination dials from the weather as