Surfactant, Sodium Sulfate, Dye, Emulsifier, Disinfactant, Plasticizer, Fragrance.
Use 1 disc at a time. Remove toilet tank top. Remove tablet from package. Flush toilet. When water level is low and valve is closed, drop tablet in tank near the right sidewall and not near the water inlet. Do not flush again for at least 10 minutes. When color in the bowl is gone, replace with a new Blue Drops Automatic Toilet Bowl Cleaner.