Sodium Hypochlorite 2.4%. Other ingredients: 97.6%.
To open, squeeze sides of cap where symbols indicate and twist counterclockwise one-quarter turn. Cap does not come off. To reseal, turn cap clockwise until tightly closed. Flush toilet before cleaning. Lower bottle so cap is below the rim. Apply 6 ounces of toilet cleaner under and around rim to coat the inside of the bowl. Scrub the entire bowl with a stiff brush and allow to sit for 10 minutes to disinfect. Do not allow pets or children to access the toilet during this time. Flush toilet.