4x4 Post Cap (3.5" x 3.5") - Brown Pyramid Top (Case of 12) - With 10 Year Warranty Made from high impact, remarkably sturdy ASA resin. The same material used in automobiles. 10 year warranty against fading, discoloration and warping. Made in the USA Quick and easy patented SNAP-CAP installation, built right into the cap! Fits a standard (Nominal) post. (3.5 x 3.5 up to 3.75' x 3.75').