Ideal for commercial shops, schools, studios and institutional use, the lightweight portable drying rack features an all steel frame design for long life and faster assembly. Lightweight, easy fitting shelves snap quickly into the all-steel frame. The original Tray Lock system holds the shelves firmly in place after they have been lifted up to move or adjust. Rubber bumpers assure proper shelf spacing, while each shelf comes with backstop wires to catch items that may fall behind the unit. The casters swivel with ease and its mobility makes it invaluable in organizing under the most restrictive classroom configurations. Drying rack features 80 shelves.