Metro MAX4-9997-4 Corner Adapters for MetroMax 4 Industrial Plastic Shelving, Bag of 4 MetroMax 4 shelves can be mounted to Metro shelf supports using the MetroMax 4 Corner Adapters to create a Wall Mount Shelving solution. One bag is required for each shelf. Only compatible with MetroMax 4 shelves. Shelves and shelf supports sold separately. Metro Product Type:Corner Adapter Material:Polymer Color:Taupe Warrenty:Product will be free from defects in material and workmanship under normal use, service and maintenance for a period of one (1) year from the date of shipment of the Product by Seller, unless otherwise specified by Seller in writing.