Avent Anti-Colic Feeding Bottle, SCF821/11, promotes health and comfort of your baby. It reduces gastric issues and spit-ups, ensuring your baby gets the right amount of nutrition on time. The anti-colic feature lets only milk pass through its nipple and blocks air from entering into baby's stomach. It is an ideal bottle for storing milk hygienically. The leak-proof design prevents spills and mess. It is simple in use and easy to clean bottle. It is compatible with other Philips Avent products.