Clorox Automatic Toilet Bowl Cleaner tablet cleans and deodorizes with the power of bleach and kills 99.9% of household bacteria in the toilet bowl water. Each tablet sanitizes the toilet bowl water in 5 minutes, cleans for up to 3 months and helps prevent tough hard water, mineral and lime scale stains. These easy to use tablets keep your toilet smelling fresh and sparkling clean with every flush, leaving bowl water crystal clear. To sanitize, clean and deodorize, simply drop a tablet in the toilet tank and let it do its work. The tablet does not harm the septic tank. With Clorox, you know your toilet bowl is clean and disinfected.Usage Directions: Clean toilet bowl thoroughly, including under the rim. Cut open pouch. Do not touch tablet directly. Flush toilet. When water level in tank is low, drop tablet in tank near side wall away from water valve opening. When tablet is dissolved, add a new Clorox Automatic Toilet Bowl Cleaner tablet to help keep your bowl sanitary. Tablet should be used in toilets that are flushed daily. Each tablet lasts up to 6 weeks. Caution Statements: Keep away from children and pets. Contact with tablet causes eye and skin damage. Harmful if swallowed. Avoid direct contact with tablet. Do not use ammonia in toilet bowl, and do not add ammonia or other household chemicals to toilet tank, as hazardous gases may result. If tablet needs to be removed before completely dissolved, wear rubber gloves while removing from tank. Place in plastic bag. Avoid dripping.