Woodway Flat Top Post Cap With 3 Inch Ball Accent 6 x 6 &ndash; Cedar Wood Fence Post Cap for Garden, Deck and Patio Decorative flat top post cap made out of strong and sturdy Western Red Cedar wood for durability and longevity. This flat top post cap with 3 inch ball accent adds visual appeal to any fence, deck, mailbox or lamp post. Weather resistant construction that is designed to handle the outdoor elements. Cedar naturally resists rotting and pests. This post cap prevents water from settling in your posts. Made with quality it will not fade or split at the corners. Easy to install, this nominal 6 x 6 inch cap fits posts up to 5.5 x 5.5 inches and is made with rabbeted joinery for extra strength and dimensional stability.