This Woodway Acorn Finial Cedar Wood Post Cap Style 870.1869 is an elegant and practical solution to protect your posts from the natural elements. Use this decorative wood finial to top any fencing, deck railing, lamp or mailbox post. It adds beauty while it  protects the top of your post from water and sun damage. Made out of premium Western Red Cedar wood, this post finial is naturally decay resistant. Measuring 3 1/16th inches wide by 5 1/8 inches high it can be used both indoors and outdoors. Final acorn post cap is pre-fitted with a ¼ inch wide galvanized lag screw that measures 2.5 inches in length for easy application. This decorative acorn post cap will twist into place, stays secure, and can be stacked onto other post caps.