Introducing the Penfield multiple mailbox system, a new contemporary approach to the traditional mailbox post. This twin “Y” shaped post with no base, is designed to accommodate Three Letter Sentry mailboxes that’s mounted at the top of the post. The post is made from rust-free aluminum with a heavy-duty, durable, weather and corrosion resistant powder coated finish, Letter Sentry mailbox is a locking mailbox that features an eighteen-gauge galvanized steel body and door with a double-coated finish. It accepts smaller mail and larger packages. Convenient outgoing tray is also an internal baffle to help keep unwanted hands from reaching into the mail storage area. Our mailbox post systems are assembled in the USA with some imported parts. At Qualarc we are dedicated to offering quality products that will help you stand out from the crowd!