Qualarc LPST-703-E1-BL Lewiston Aluminum Post Mailbox System with Support Brace, Economy Mailbox, Mounting Plate, Ornate Base and Pineapple Finial, Black Lewiston post is made from rust-free cast aluminum with a durable weather resistant finish Comes with a E1 black economy mailbox, support brace with mounting plate, decorative pineapple finial and ornate base Add ASIN# B074MJPHYD to make this into a locking mailbox E1 economy mailbox is made of galvanized steel with a smooth rust-resistant finish, steel latch and red aluminum flag