Keep your bathroom looking fresh with no mess with Lysol No Mess Automatic Toilet Bowl Cleaner. This toilet bowl cleaner comes in blocks that you hang on the inside of the toilet and that clean the bowl with every flush. Each block works for up to 8 weeks. Plus, this Lysol toilet bowl cleaner has a clean citrus scent that refreshes your entire bathroom. Antimicrobial protection in the hook resists odor-causing bacteria.