I bought two of these units to make better use of the vertical space above my bench. What a difference! The top cleat slid right into the wall slot and the adjustable lower cleat made it super simple to get into the lower track. The shelves are adjustable so I can fit taller items on the lower shelf and then more flat items above them. The locking doors are a good security feature as well. The doors are easy to open and stay closed through the magnets in the top of the door. Very versatile!!!