Similac Standard Flow Infant Bottle Nipples - 4 Pack is a set of four bottle nipples designed for infants. The nipples are made by Similac, a well-known brand in the baby feeding industry. These bottle nipples are designed for standard flow, making them suitable for babies who are just starting to use bottles. The product is ideal for parents who want to ensure their babies are getting the right amount of milk or formula during bottle feeding.