Product parameters: Material: Zinc alloy Color: silver gray, black Size: 15*13.5*5.5cm Shape: house Package list: 1x password key box Product description: [Large and secure storage]: The capacity of the large coded key box is large enough (inner size about 3.15 x 2.75 x 1.77 inches) to place house, office or other large car keys; And you can also store some small things if necessary, such as credit cards, ID cards, etc. [Two unlocking modes]: This code key safe features a 4-digit digital code and an emergency button; it allows you to define a maximum of 10,000 combinations. You can set your own password and change it periodically to improve security and make it difficult to crack. Emergency keys can be more practical in case you forget the code! [Easy to Install]: This outdoor key box comes with 4 screws and 4 nylon expansion wall anchors to ensure the key box can be mounted on any solid surface. No need for any trouble or extra work to drill a box into the wall, which will cost much more. [Solid Construction]: Our wall mounted key box is made of durable aluminum alloy, resistant to water, corrosion, and bad weather. Perfect for outdoor mounting. Wide Application: This large outdoor key box can be widely used in home, garden, office, etc. It would be a great help for any occasion. It allows you to keep and secure your car key while boating, instead of taking the risk of hiding it in the sand/under a rock, etc.