Product Description A unique hair planting pattern that makes a difference with just one stroke! The upper and lower row hairs are arranged differently, allowing for effective cleaning of delicate tongue surfaces without unnecessary overlapping strokes. Ingredients and Materials [Handle Material] Main Body... Polypropylene Rubber Part... SBC [Hair Material] Nylon How to Use - Place the brush surface on the tongue and gently pull it forward from the back of the tongue. - For hygiene, it is recommended to replace the brush every 30 days. Safety Warnings - Do not use for purposes other than tongue cleaning. - Avoid scrubbing too hard as it may cause injury to the tongue. - Be cautious as inserting too far back on the tongue may induce nausea. - Use once a day as a guideline. - After use, thoroughly rinse with running water, shake off excess water, and store in a well-ventilated area. - Discontinue use if the tongue is irritated or if any abnormalities occur.