The "Coronado Collection" mailboxes are USPS approved and feature a 16 gauge galvanized steel body and durable powder coat finish. Brass, copper, bronze and nickel accents are constructed of solid brass and include stainless steel hinges along with zinc plated screws and nuts. Choose your combination of 4 different colors with any of the four accents...brass, copper, bronze or nickel. The sand color with bronze accents is not available. This is a very heavy duty large capacity mailbox and will provide many years of reliable service.