What You Will Receive: the paa contains 4 pieces of tongue scrapers in 4 colors,including ple,oran,bla and blue,avoiding confus when fily members use them,with 4 stora cases equipped for easy stora Bad Breath: the tongue cleaner can clean your tongue and makes your taste clearer,reducing bad breath to some extent; When you wake up,you can enjoy your meal without terrible morning breath,bringing you and your couples good kissing time Double Sided Design: the tongue cleanser is mainly made of stainl steel,no bad smell,with a smooth surface,safe to use; If you have slight nausea when cleaning the base of your tongue,please extend your tongue as much as possible; When you use it for the first time,your tongue may be not adapted to it,you can shave it 3-5 times with side A and then switch to side B Detailed Size Informat: the metal tongue scraper with handle is about 14.6 x 2.2 cm/ 5.75 x 0.87 inches,the proper size is suitable for most adults and kids,but the child's tongue is too soft,so it is remended to use side A Easy to Apply: when you first use the metal tough scraper,please wash it with boiling water,at least once every three months; After each use,rinse them with water; You can place it in warm water for 1 minute before using it in winter.