The Charleston Plus shares the stately look of our Liberty mail post, but in a slightly smaller scale. This post has quickly become a favorite. 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% polyethylene with built in UV inhibitors for long lasting protection from the elements. Includes decorative post and mailbox support arm with paper holder. Products ships in 2 boxes (Charleston post MP5843BK / arm MP5810BK). Medium mailbox recommended, minimum 6 1/4 inch width. Best suited for mailboxes weighing less than 14lbs. Note: 4x4 wood post, mailbox, and mailbox mounting hardware NOT included. 15 Year Warranty – Residential Application, 5 Year Warranty – Commercial Application. Optional Mayne No-Dig Ground Screw available. For further questions please contact MAYNE INC at 1-866-363-8834. Made in the USA.