HIGH SECURITY: Strong zinc alloy construction with 4 heavy-duty internally mounted screws giving the key code lock box high resistance to hammering, sawing and prying. The resettable 4-digit key box with numeric code allows you to set your own combination with 10000 unique options. Be confident in giving the house keys to your family and loved ones and never worry about locking anyone out. EASY TO USE: With all included mounting hardware and pre-drilled holes, it's easy to attach the key safe combination to a solid surface. Only four steps to set and reset the 4-digit combination. Instructions are always included. Know that you never forget your code. CAPACITY: The key hiding place for outdoors offers space for up to 5 keys. You can also save your credit card and USB. [NOTE] As the top inside is occupied by the lock mechanism itself, only items no thicker than 0.5cm can pass through this part. Long, thick objects such as wireless car keys do not fit through. VALUE RESISTANT: The key box with combination lock is suitable for outdoor use. And the environmental protection paint increases resilience. It also comes with a sliding door to hide and protect the dials from dust, rain, snow and ice in your daily use.