Clorox Automatic Toilet Bowl Cleaner Tablets are easy to use and clean and deodorize with every flush. It kills 99.9% of bacteria with the power of Clorox Bleach. Each pack includes six 3.5- ounce tabs. Easy-to-use tablets, drop-in bowl and replace when dissolved each tablet lasts 2-3 months (avg 10 flushes per day)Deodorizes with the power of Clorox Bleach Includes six 3.5- ounce tabs.