Avent Anti-Colic Feeding Bottle, SCF821/15, is made to support your newborn's feed needs. It ensures that there is no stomach ache complains from your baby or any discomfort. The valve on the anti-colic bottle nipples helps with the right amount of flow as required by baby. It prevents from over-feeding, burps, gas and spit-ups. Its extra soft silicone nipple comes in different size for different age babies. The round, wide neck opening helps easy washing. The leak-free design lets you carry it around without dripping.