Woodway Acorn Finial Post Cap Decorative Cedar Wood for Fence Posts, Deck, and Patio Railings, Measures 3-1/16 Inches Wide by 5-1/8 Inches High Acorn finial made out of the highest quality Western Red Cedar wood which is naturally weather and rot resistant. Measures 3-1/16 inches wide by 5-1/8 inches high not inclusive of the lag screw. 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. Finial 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.