Features: * For use with ShelfTrack system * Locks the wire shelf to the vertical wall standard for added safety * Keeps shelves from being pushed up and unlocked accidentally * Works with ventilated shelving * 1/2 in. width * 20 in. depth * 3-1/2 in. base height What"s In The Box: * Closetmaid 2855 20-Inch ShelfTrack Shelf Bracket, White