Quality-built, premium steel unit has a strong steel frame, shelves, and dividers with a solid fiberboard back. Interlocking design of the shelves and dividers add extra strength to hold up to the heaviest load. Wide shelf fronts serve as generous label holders. The organizer can be placed on the floor, desk or table, and can even be mounted to a wall with optional Wall Mount Brackets. Includes 18 compartments. Compartment size 12"W x 15-1/4"D x 4-3/4"H. Gray finish.