Mobile Dunnage Racks allow you to store and transport food supplies, boxes or other merchandise without loading and unloading. 12"H dunnage rack includes a removable top deck, a three sided frame and four -5" polyurethane swivel casters with donut bumpers. 1200 lb. capacity. Poly-Z-Brite features a true powder-epoxy over zinc-chromate electro-plating that ensures a strong durable finish that resembles the look of chrome, yet handles temperature and moisture extremes even better. Ideal for dry storage, coolers and freezers. Features NEX Guard , an anti microbial agent that protects the epoxy coating from bacteria, mold, and mildew that causes odors and product degradation. Limited Fifteen-Year Warranty against rust and corrosion.