For example, never clean the tongue, business negotiations, stay up late and work overtime, smoking and drinking, long-term medication, eating high-protein food and other people. RONAVO Tongue Scraper :Ergonomically designed and comfortable to use, every family member can enjoy a relaxing and enjoyable oral cleaning experience. Unlike traditional single-head tongue scrapers, our double-head tongue scraper is specifically designed to remove debris from the tongue surface more quickly and effectively. The combination of two scraper heads allows for optimal coverage and precise movement, leaving your tongue feeling fresh and clean.