Distinctive in design. Bring the past together with the present in a way that’s provocative and radiant. Good taste and superior quality never go out of style. Unique New England-styled product offering the timeless charm of the East Coast installs easily over a standard 4 x 4 wood post. Mayne plastic mail posts are made from high-quality 100% polyethylene with built-in UV inhibitors for long-lasting protection from the elements.