Lustro Italiano Stone Sealer is an 8-1/2-ounce ultra premium grade natural stone sealer designed to deeply penetrate into the micropores of stone: granite, marble, travertine, limestone, etc. Lustro Italiano sealer also works excellent on quartz stone and concrete. May also be used as a premium grade grout sealer. Lustro Italiano Sealer does not change the color of the stone, doesn not leave a film and provides up to 5 years of protection. 8-1/2-ounce size is perfect for the average size kitchen!