This is a set including a baby bottle, three nipples, and 20 Chu Chu tablet sterilizing tablets. The tablet box has been opened, and 4 tablets have been used, leaving 20 unopened. The items were used infrequently as I primarily breastfed. The set includes two M-sized nipples, one S-sized nipple, and a 150mL bottle. The items have been sterilized, but they have been stored at home, so please sterilize them again before use. These are used items, and I am not responsible for any issues after use. Thank you.