Why do we need a secure key safe DURABLE AND STURDY DESIGN: This key box made of zinc alloy and aluminum alloy provides powerful resistance to cutting, hammering, and sawing. And it is durable and weather resistant.EASY TO SET AND INSTALL: 4-digit resettable combination for keyless entry and you can set and reset your personalized password. Clear and easy to follow instructions (mounting kit included), even easy to install for non-DIYers.WIDE APPLICATION: You can also use this key safe box in a warehouse, garage, office, etc. Package Included: 1 x Key Safe Box4 x Heavy Duty Screws4 x Plastic Extension Plugs1 x User Manual Installation Steps Dial the default code (0- 0-0-0) to open the key boxPush the RESET lever from position A to BTurn the dial to set your own passwordPush the RESET lever to position A, that's done Tips: Be sure to record your password by taking a photo or making a note after each password reset; I have no way to recover it.It is NOT recommended to use a combination like "0-0-0-0", otherwise it could be easily cracked.It is recommended to rotate the dials weekly to keep them working properly. Warm Information Take a photo after resetting the password to avoid forgetting it. Change your password periodically to improve security. And remember the password by taking a photo. Convenient for Children When your children get home, they can enter the password to remove the key directly from the box, so you don't have to worry about the children forgetting to get the key or losing it. Ideal for emergency entry, home care access If you don't live with your elderly parents, you can use this key box to store keys so caregivers can enter the house for elderly care. Suitable for properties for sale If you want to sell or rent a house, you can put the key in this key box, and your real estate agent can always show you the house to the client. Suitable for cleaning staff If you are not at home, the cleaning staff can collect the keys directly from the key box to clean the room. Note: The data is manual measurement, please allow an error of 1-133 cm, due to the differences between light and display, there will be a certain color difference, the specific kind received shall prevail.