20 Metal and polymer shelves; shelves; non-metal shelves; shelving systems consisting of non-metal shelves and supports, enclosure panels, racks, clothes hanger rails, non-metal bins and plastic boxes, posts, connectors, post-to-post connectors, support bars, support poles, storage baskets, wire baskets, shelf and drawer dividers, shelf inlays, utility baskets, hooks, utility hooks, casters, foot plates, leveling feet and supports therefor, wall hangers, floor protector caps, clothes hanger tubes, shelf collar plugs, and metal shelf brackets all sold as a unit with shelving; and, metal cabinets