6x6 Post Cap - (True 6") White Pyramid Top - With 10 Year Warranty Fits a True (Actual) post. (6" x 6" to 6.25" x 6.25"') 10 year guarantee against fading, discoloration and warping! Made with high impact, remarkably sturdy ASA resin. The same material used to in automobiles! Made in the U.S.A. Quick and easy patented SNAP-CAP installation, built right into the cap!