Shelves are adjustable or removable. Ten hardboard shelves form up to twelve 9w x 11 1/2d x 2 3/8h letter-size compartments and support up to 15 lbs. each. Ideal for desktop literature organization. Shelves are adjustable or removable to customize compartments. Ten hardboard shelves form up to twelve 9w x 11 1/2d x 2 3/8h letter-size compartments and support up to 15 lbs. each. Made of 1/2" compressed wood with laminate finish; solid fiberboard back. Global Product Type: Literature Sorters-Open Front; Literature Sorter Type: Open Front; Number of Compartments: 12; Compartment Size: N/A.