1.The main body of each key safe is made of high strength aluminum alloy, anti-corrosion and anti-rust the excellent effective, durable. The high quality aluminum alloy body can protect the key box from hammering, sawing, securing your belongings from theft. 2.Securized key box with removable handle. You can hang it exactly where you need it, Indoor and outdoor use, such as door handles, on gates, fences, cars or anywhere else. Without installation tools, because no need to fix it to the wall, remove it at any time, like a normal padlock. 3.The key safe consists of a password to 4 digits, there are 10,000 possibilities. The 4 position combination lock is ten times more secure than the 3 position combination lock, so don't forget your password. You can choose your favorite number from 10,000 different combinations and easily set or reset your password in minutes. 4. Outdoor Key Box is small and portable, with a wide range of applications, unrestricted, exquisite and durable. Suitable for indoor and outdoor use, Can be applied rental, garage, office, school, warehouse etc. color: gray Size: 57.5*57.5mm Quantity sold: 1 piece Instructions: The first step: the initial password 0-0-0-0 enter the correct password to open the password lock Step 2: toggle the modifier key from point A to point B Step 3: Turn the password wheel and set the number you need to set (1100) Step 4: Press the lock tab and dial point B of the modifier key to point A, and the password is set successfully. About chromatic aberration: The goods sold are all taken in kind, but due to different lighting, monitors, etc., there will be a little color difference, which is a normal phenomenon, not a quality problem! About the size: The dimensions of the products sold are all measured manually. Due to different measurement methods and tools, there may be an error of 1-2mm, which is normal!