1.Wall cabinet: install it INSIDE ONLY.With 28 numbered hooks and stickers to arrange keys in numerical order and keep them well organized.Ideal for schools, home, businesses, real estate agencies, etc. 2.Combination lock: The 3-digit code lock offers 1000 combination methods.And the interior control lever for password lock can effectively prevent it from accidentally resetting. 3.Resettable code: Initial code: “000”.Push the control lever inside the cabinet from A to B, set the desired code, then pull the lever from B to A to complete the code reset. 4.Secure Construction: 20L x 7.6W x 25H(cm).Made from 0.8mm frosted sheet steel for optimal safety.And the solid piano hinge makes it unlikely to be opened to prevent forced entry. 5.28 Labels in 5 Colors: Contains 28 larger but lightweight labels with write on and erase labels for easy visibility.Easily identify keys with color coding and labeling.