Limited on desk space? Enhance the storage of your metal desks or filing cabinets. Built with your convenience in mind, the extra strong magnets support up to 5 lbs. of weight so theres no need for drilling or adhesives. Tough poly construction. The back wall ensures that no paper, big or small, will slip between the cracks. PVC-free. BPA-free. Hanging File Systems Type: Wall; for File Size: Legal; Letter; Overall Height: 7"; Width: 16".