SALE! Knight Box (TM) Push Button Lock Box, Combination Key Storage LOCK Box, Key Safe, Wall Mount Key Lock Box with 10-Digit Push-Button Combination Black Great Christmas Gift *Wall Mounted Realtor Key Lock Box with Waterproof Cover. Wall-mounted solution to storing Great for indoor and outdoor use. Easy to set code. Simply remove the white plastic cover, turn the screws to the desired code, and replace the cover. Safe and easy way to store keys for kids coming home from school. Great for contractors and realtors who require access to houses. Mounting hardware is included for your convenience. Easy way to avoid the mistake of locking yourself out. Installs in mere minutes You'll want to use your Knight Box right away so we include all mounting hardware. Holes are pre-drilled on the mounting plate. Your Knight Box can be installed on drywall, steel doors, fence posts and more.