The Philips Avent Anti-colic bottle is designed to reduce colic and discomfort in babies by keeping air away from their tummy during feeding. This 260ml bottle features an innovative anti-colic valve system and is suitable for babies 1 month and older. Key features: • Anti-colic valve system keeps air away from baby's tummy • 260ml/9oz capacity suitable for 1+ months • Ribbed texture prevents teat collapse • Easy to clean design • BPA-free materials • Slow flow teat included • Clinically proven to reduce colic symptoms The bottle's integrated anti-colic valve flexes during feeding to vent air towards the back of the bottle instead of mixing with the milk. The wide neck design and minimal parts make cleaning and assembly simple. The bottle features measurement markings and is compatible with other Philips Avent feeding products. The included slow flow teat is designed for babies 1 month and older.