Wall mount adjustable wire shelving units are ideal for storing products where floor space is limited. Great for kitchens restaurants labs garages or any secure wall area. Add-on units consist of 1 wall mount post 1 double post mount shelf bracket and 1 wire shelf. Poly-green® designed with a powder coated green epoxy finish that handles temperature and moisture extremes well. Purchase a ""starter"" unit and then attach as many ""add-on"" units as needed. Additional shelves are also available for added storage.