WOW Brand Products 163-1x2 SSR Stainless Steel Restorer - 2 oz. Specially-blended combination non-corrosive, biodegradable, non-butyl based cleaner that is user friendly Can also be used as a stainless steel, aluminum, copper, and metal restorative Works great on soap scum, hard water stain, shower stall stains, removing tarnish from chrome, grout, and rust stains on toilets Rinses easily and fast, and environmentally friendly Never clogs valves or jets