Product Description Timeless Style Infused in History...These classic lines were created with impeccable style and craftsmanship for lasting appeal. From the Manufacturer These classic lines were created with impeccable style and craftsmanship for lasting appeal. Your vision will be transformed into your own personal expression of timeless beauty where everything old is new again. Mayne mail posts install easily over a standard 4x4 wood post. Bury about 2-3ft in the ground and leave 4ft above the ground. Slide the decorative sleeve over the post, attach the paper holder arm and planter to the post, and then secure your mailbox of choice to the arm. Mailboxes can be bolted directly to this arm using a standard nut and bolt combination