Lewiston post system with E1 Economy mailbox and E1 Locking Insert, mounting plate, fluted base and ball finial, WhiteOur Lewiston Post is made from rust-free cast aluminum with a durable weather resistant finish and comes with a E1 Black Economy Mailbox and Locking Insert, support brace with mounting plate, decorative ball finial and fluted base.Post, support brace, finial and base are made from powder coated cast aluminum will not rust and is scratch resistantLocking insert is made of galvanized steel and features a tough powder coat finish keeping mail secure from unwanted handsIncoming mail slot opening: 6-3/8" and 1".Locking door opening: 5"x 6-3/8".Mailbox Dimensions: 6-3/4"x8-3/4"x 19"E1 economy mailbox is made of galvanized steel with a smooth rust-resistant finish, steel latch and red aluminum flagComes with a heavy duty lock and set of keysProduct Dimension: 6.5"x19"x5''2"Color: White