HIGH SECURITY: The solid zinc alloy construction with 4 heavy-duty screws inside makes the key box with digital password extremely resistant to hammering, sawing and chiseling. The resettable 4-digit key box allows you to set your own combination, with a total of 10,000 unique options. You can confidently hand over your home keys to your family and loved ones, and never worry about someone being locked out again. EASY TO USE: The key safe combination can be easily mounted to a solid surface with all the included mounting hardware and pre-drilled holes. It only takes four steps to set and reset the 4-digit combination. Be sure to include the instructions. Be careful not to forget your combination. CAPACITY: The replacement key box can hold up to 5 keys. You can also store credit cards and USB ports. NOTE: Because the top of the interior is occupied by the lock mechanism itself, only objects with a thickness of no more than 0.5 cm can pass through this part. Long and thick objects (such as car remote control keys) cannot pass through. WEATHER RESISTANT: This small outdoor key safe is suitable for outdoor use. High-quality materials are corrosion-resistant, rust-proof, and weatherproof. Environmentally friendly paint enhances durability. It also features a sliding door to hide and protect the dial from dust, rain, sleet, and ice during daily use.PERFECT: This key safe is the perfect solution for hiding and storing keys in your Airbnb rental.