The Mayne Newport mailbox post serves as a perfect first impression of your home. Manufactured by molding premium high-grade polyethylene plastic to provide long-lasting beauty and durability. No painting, no treating, no sealing… just enjoying, enjoying, enjoying. Unlike wood, Mayne products keep their good looks year after year with just an occasional rinse with a garden hose. 15-year warranty. Mounts over a pressure treated 4"x4" wood post, not included. Holds mailbox weighing up to 8 lbs. Mailbox not included. 56.5"H x 27"W. Base is 8" square. 12 lbs. Available in White, Clay, Granite, or Black.