Mayne 5846-BK Charleston Plus Mailbox Post 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. Note: 4x4 wood post, mailbox, and mailbox mounting hardware NOT included. Products ships in 2 boxes (standard post MP5843C / arm & planter MP5810C). Additional Measurements: Paper holder inset panel measures 3.25in H x 10.5in L, top inset panel on the post measures 1.85in W x 25.6in H Medium mailbox recommended, minimum 6 1/4 inch width (paper holder mounting surface measures 6.125in W x 17in L), best suited for mailboxes weighing less than 14lbs. 15 Year Warranty  Residential Application, 5 Year Warranty  Commercial Application. Made in the USA.