This is a product you absolutely can't live without. It's so easy to use and clean. Just place cleaner on the back of your tongue and pull forward gently scraping your tongue. After every pull, rinse the scraper with water,repeat the procedure until you feel clean. Than rinse your mouth with water or mouthwash. Whole procedure will take only 2 min. from start to finish. So little to invest for such a huge benefit. This tongue cleaner is dishwasher safe. This is one size fits all adult and children age 8+. Children under age 8 can use under adult supervision. This tongue cleaner is so amazing it doesn't just clean your tongue and freshen your breath, but improves your tastebuds' abilities to taste and even your sense of smell, since taste is connected to smell. It prevents cavities in long run and you feel confident meeting people because your mouth is clean and your breath is fresh.