Woodway Finial Post Cap Decorative Redwood Wood Ball for Fence Posts, Deck, and Patio Railings, 3  Inch Diameter Ball finial made out of the highest quality Redwood wood which is naturally weather and rot resistant. Ball measures 3  inches wide by 4.64 inches high. Post finial is pre-fitted with a  inch wide galvanized lag screw that measures 2.5 inches in length for easy application. Post cap will twist into place and stays secure. inial can be used alone or mounted on top of another post cap for a unique look. Post cap can also be used for indoor applications. Extend the life of your fence posts by providing protection from water damage and sun. This post cap is made for durability. With its classic architectural design, this decorative finial adds a touch of class and elegance to your deck, patio fence, or post.