MB-26 Stain Scrub is formulated to safely remove stubborn water deposits, soap scum buildup, and grime from glass, stone, and metal surfaces. MB-26 is aggressive and great to use in addition to MB-3 Soap Film Remover. Outstanding on glass shower doors, glass tiles, sinks, porcelain, ceramics, honed marble, granite, chrome, stainless steel and aluminum.*Environmentally safe, nonabrasive and easy to use. Restores your shower doors, faucets, sinks and more.*Stain Scrub Pad included.