The Cascade Post Cuff adds a classic finishing touch to your Capitol Mailbox Post. Makes a great first impression, enhancing the curb appeal and value of your home. Colors and style match the mailbox (sold separately) for a coordinated presentation. Manufactured from sand cast, high-density aluminum alloy with a Alumi-Shield All Weather Coating: A Whitehall Exclusive. Alumi-Shield – Protects against the harshest weather and environmental elements. Extends the product life and maintains the look and function.