The Rockport Single mail post is a great fit for mailboxes with front and back doors to avoid walking onto the street to retrieve your mail. Unique New England styled product offering the timeless charm of the East Coast, installs easily over a standard 4x4 wood post. Mayne plastic mail posts are made from high quality 100 percent polyethylene with built in UV inhibitors for long lasting protection from the elements. Medium mailbox recommended, minimum 6 1/2 inch width. Best suited for mailboxes weighing less than 8lbs. Color: White.