Material:stainless steel Size:Length and width are about 12.6*4.6cm It is very effective to clean your tongue, help you restore fresh breath and taste sensation. The curved design and smooth surface creates the perfect shape to reach your entire tongue. Work better than a toothbrush. Use twice per day, morning and night. Please rinse it before & after each use. This tongue scraper cleaner comes with a metal case, you can take it conveniently to everywhere.