Cabinetry is formed from 5/8" compressed wood with laminate finish with a solid fiberboard back for strength and rigidity. Strong hardboard shelves (15 lb. capacity) form twenty-four basic letter-size compartments. They adjust in 2-1/2" increments to increase the size of individual compartments for storage of books, 3-ring binders or personal mementos. Black plastic molding complements finish while doubling as a convenient labeling area (labels are included). Mix and match with additional organizers with or without drawers to form a custom storage unit to meet individual needs. Available in Gray and Oak. Quick and easy assembly.