The Locking Post Mounted mailbox is a classic mailbox collection designed to offer an elegant and secure means to hold your mail. The collection offers a wide array of styles and timeless designs available in unique finishes to complement any home. Quality craftsmanship goes into each piece for added strength and durability for years of enjoyment. With its classic pony express design, Its lightweight construction is durable to withstand all four seasons. The mailbox features a solid brass mail flap with an opening of up to 1.875" depending on the mail volume. Each mailbox comes with four keys. Please note: Letters, numbers, and mounting hardware (Anchor Bolt) are not provided. Please have expert assembly and mounting.