Welded stainless steel – your best value for years of trouble-free service. Ideal for hotels, central kitchens, hospitals and schools, refrigerated or dry storage and convenient sheet pan and tray transport. Durable, efficient storage system with all welded stainless steel construction. Fully assembled. Ledges are electronically welded to the uprights to withstand continual use. Tie bars are welded to the uprights for added rigidity. Welded stainless steel design is easy to sanitize and maintain. Corner stem mount casters Provide upright stability. Economy series racks can also fit into roll-in coolers.