Sleek styling and a smooth, modern look are the hallmarks of the Parsons mailbox. This attractive mailbox is guaranteed never to rust because it is made from polypropylene plastic, while an ultraviolet inhibitor provides protection from weathering. Homeowners have a choice of black or white color options. The medium-sized Parsons mailbox has the ability to hold a standard amount of mail, along with padded envelopes, magazines and small boxes.