Our Anti-colic teat is designed for uninterrupted feeding. Air is vented into the bottle and away from the baby’s tummy. The ribbed texture prevents teat collapse and reduces feeding interruptions and discomfort. Anti-colic valve proven to reduce colic* Our anti-colic valve is designed to keep air away from your baby’s tummy to reduce colic and discomfort. As your baby feeds, the valve integrated into the teat flexes to allow air into the bottle to prevent vacuum build up and vents it towards the back of the bottle. It keeps air in the bottle and away from baby’s tummy to help reduce colic and discomfort. 60% less fussing at night* Philips Avent Anti-colic bottle reduces fussing. Babies fed with Philips Avent Anti-colic bottles experienced 60% less fussing at night, than babies fed with a competitor’s anti-colic bottle.* Ribbed texture prevents collapse for uninterrupted feeding The teat shape allows secure latch and the ribbed texture helps prevents teat collapse for uninterrupted, comfortable feeding. Different teat flow rates available The Philips Avent Anti-colic bottle range offers different teat flow rates to keep up with your baby’s growth. Remember that age indications are approximate as babies develop at different rates. All teats are available in twin packs: Newborn, Slow, Medium, Fast and Variable Flow, and Thick feed. This teat is BPA free Philips Avent Anti-colic teat is made of BPA free material (silicone). 2 x Teats (6 Months+)