6x6 Post Cap - (Nominal) Cedar Color Pyramid Top - with 10 Year Warranty Atlanta Post Caps are made from high impact, remarkably sturdy ASA resin. The same material used to in automobiles! 10 year warranty against fading, discoloration and warping. These caps are paintable and completely UV stable. Quick and easy patented SNAP-CAP installation, built right into the cap! Outlast any wood product on the market