CareFree 98510 Birdbath and Statuary Cleaner, 16-Ounce Spray evenly on surface and let the product stand for several minutes before wiping the debris away. Removes tough water lines, odors and mineral deposits Can be used on plastic, concrete, vinyl, stone, glass, ceramic, metal and marble surfaces. All-natural enzymes that are safe for wildlife and the environment. All-purpose bacteria free product made from plants, trace minerals, and water enhancing agents.