The Tommee Tippee Advanced Anti-Colic Bottle combines the breast-shaped teat with a unique 3-piece anti-colic system to provide optimal aeration during feeding. The triple vent disc circulates air downward through the tube, while the star-shaped valve prevents milk from backing up. The teat is breast-shaped because babies prefer it that way. It's made of soft silicone for a "mom's skin" effect and features helical rings that replicate the natural movement and flex of a mother's breast. The wider neck gives your baby a better latch and allows for continuous feeding. For added peace of mind, the temperature-sensitive vent tube helps us know if the milk is at the right temperature. If it's blue, it's suitable for feeding, but if it turns pink, the milk is warmer than recommended (37°C). 84% Less Colic: After consulting 189 mothers and fathers who had tried this product, 84% said that the bottle effectively reduced the symptoms of colic, reducing gas, vomiting, and discomfort. Recommended by Mothers: 95% of mothers would recommend Tommee Tippee Advanced Anti-Colic bottles, based on a 2021 study of 524 people who use Tommee Tippee bottles. Compact Shape: Tommee Tippee bottles have been designed to be held in the most natural position during feeding, allowing you to hold your baby closer. BPA Free For your complete peace of mind, none of our products contain Bisphenol A (BPA).Product SpecificationsSize: 260ml, LilacTeat Included: Slow Flow (No. 1 - Newborn+)Material: Silicone Teat, Plastic (PP) BottleCompatible with Tommee Tippee Advanced Anti-Colic teats.