Gibraltar Mailboxes Landover  Aluminum Bronze, Mailbox Post, LP000BZ0 Engineered to support up to 60 lbs Aluminum construction provides strength and stability Bronze powder-coated finish helps to withstand against weathering Compatible with most Gibraltar post-mount mailboxes including the AR15B000 and the MB801B Mounting bracket and hardware included Elegant bronze finish Composed of a durable, galvanized steel and aluminum combination Cross arm construction securely holds mailbox