Strong hardboard adjustable shelves form letter-sized compartments. Solid fiberboard back for strength and rigidity. Includes drawer for storage of office supplies. Black plastic molding complements finish and doubles as a labeling area (labels included). Can be stacked up to three high. Literature Sorter Type: Open Front; Number of Compartments: 14; Compartment Size: Letter; Material(s): Compressed Wood; Laminated.