Tommee Tippee Advanced Anti-Colic Baby Bottle 340ml 3 Months and more is a baby bottle for babies over 3 months and older, elaborated to reduce the symptoms of colic (less wind, less reflux, less discomfort). Characteristics of the teat: - Patented teat for ease of use and guaranteed acceptance. - Flexible like the mother nipple for optimal comfort during feeding. - Flexible teat for a transition between the breast and the bottle facilitated. In the baby bottle, the tube is equipped with thermosensitive technology, indicating when the milk is too hot (the tube becomes pink). The star-resistant anti-leakage valve prevents the return of milk into the tube.