Woodway Round Ball Post Cap &ndash; Cedar Wood Outdoor Fence Post Cap for Garden, Deck and Patio, 4 x 4, 1 PC Decorative round post cap made out of strong and sturdy Western Red Cedar wood for durability and longevity. Ball post cap naturally adds visual appeal to any home whether it's a fence, deck, pergola, arbor, mailbox or gate. 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, measuring 4 by 4 inches, made with rabbeted block for a secure fit. Fits 3.5 inch post.