Introducing the Penfield twin post, a new contemporary approach to the traditional mailbox post. This twin Y-shaped post with no base, is designed to accommodate 2-E1 economy mailboxes, or 2-Lewiston mailboxes, that's mounted at the top of the post. The post is made from rust-free aluminum with a durable weather-resistant powder coated finish. We design and build many of our twin post system in house. This allows us to tailor our multi-box mailbox systems to suit the needs of our customers. All our standard mailbox systems can be made into multi-box systems. We can build double, triple, quad systems up to eight box mailbox units using posts, bases and finials from our builder’s series standard and west haven mailbox systems. Color: Black.