This is a convenient inner bag for baby bottles that eliminates the need for sterilization and washing. It originally contained 20 bags, but 8 have been used, so there are 12 unused bags remaining. - Product Name: Inner Bag for Baby Bottles - Purpose: For baby bottles - Features: No need for sterilization or washing - Capacity: Up to 200ml Please consider this item with the understanding that it has been opened. Thank you for looking.