Philips Avent Polypropylene 4 Oz. Classic Bottles, 2 Pack

Our trusted Classic range has been improved to provide an even more enjoyable feeding experience. The clinically proven, anti-colic system is now integrated into the nipple, making the bottle extra easy to clean and assemble. Unlike other bottles, the clinically proven anti-colic system is now integrated into the nipple, making it easier to assemble the bottle correctly. As your baby feeds, the unique valve on the nipple opens to allow air into the bottle instead of your baby's tummy.