These are a set of baby bottles for sale. teteo (160ml) → Used more than 10 times chuchu (160ml) → Used about 10 times The exact number of uses is unknown. They were sterilized using sterilizing solution, boiling, and microwave methods. There are no noticeable scratches, but since they were checked by an amateur, there may be overlooked scratches. Please refrain from purchasing if you are concerned, as they have been used. #BabyBottles