Make a strong statement with our Westhaven post-and-beam style aluminum square mailbox post systems. Mailbox post system features a durable, low maintenance black powder coat finish that will look great for years and comes with a Lewiston cast aluminum mailbox, support bracket, decorative pineapple finial, and square base. Lewiston mailbox is non-locking and is made of cast aluminum with a matching powder-coated finish. Post mounts directly into the ground.