Dent- and scratch-resistant, rusproof Durable and washable Solid surface shelves prevent small items from falling through. Legs/uprights, constructed of heavy wall polypropylene plastic, interlock for extra strength. Lighter duty, open shelf system. Injection-molded polypropylene shelf engineered for 75 lbs. per shelf load capacity. 16" clearance between shelves. Shelf size: 32w x 13d x 2-3/4h. Overall 54" high.