5805B Liberty Mailbox Post- Black 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 products offering the timeless charm of the East Coast installs easily over a sClaydard 4x4 wood post plastic mail posts are made from high quality polyethylene with built in UV inhibitors for long lasting protection from the elementsIncludes large decorative post and mailbox support arm with built-in paper holder slotProduct ships in 2 boxes- liberty post MP5806B- arm MP5807BMedium or large mailbox recommended minimum 7 inch width. Best suited for mailboxes weighing less than 16lbs.Note: 4x4 wood post mailbox and mailbox mounting hardware NOT included.15-year limited warranty. Optional No-Dig Ground Screw available