They were initially designed to "dress up" objects with an extra decorative feature. Post Cap Depot adorns fence and deck gate posts with copper finials to accent copper pyramids along the rest of the fence. Having finials on every post seems like overkill but installing them at the corners or in patterns can really make a fence pop, all while shielding the posts from water damage, wood rot, and natural wear. We offer a variety of products so how you spruce up and protect your investment is up to you. Whether you choose twenty copper finial post caps or just two, you can't go wrong!