Woodway 3 Inch Ball Finial Post Cap &ndash; Treated Wood Fence Cap for Deck and Patio, 4 X 4, 1 PC A decorative 3 inch ball finial fence post cap made out of durable Western white woods. Wood is treated with a natural oil stain This ball finial fence post cap adds visual appeal to any home whether used alone or on top of another post cap as well Weather resistant construction that is designed to handle the outdoor elements. SPF wood is known for durability 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, fits common post measurement 4 x 4 and comes with pre-fitted 4 inch lag screw