Cambro Camshelving Solid Shelf Kit, 18 x 42 inch -- 1 each.For use in kitchens, freezers, coolers, pantries or dry storage. Ideal for storing non-perishable products, equipment and supplies. Each kit includes 2 traverses and several solid shelf plates to build a single shelf. Made of smooth polypropylene. Wipes clean. Rust proof. Traverses each have a solid, steel core and are weight bearing, like the posts. Dishwasher Safe.