Designed to reduce colic symptoms for less gas, less spit up and less discomfort Unique 3-piece anti-colic straw draws air away from milk Star valve prevents milk traveling back up the tube, so no leaks and that’s a promise Heat sensing technology turns straw pink when baby’s milk is too hot Award-winning breast-like nipple for natural latch and guaranteed acceptance* Product Description: There’s nothing a parent wants more than for their baby to be comfortable. That’s why we’ve combined our award-winning breast-like nipple with the latest in anti-colic innovation to create the new Tommee Tippee Advanced Anti-Colic bottle.The unique 3-piece anti-colic technology draws air away from milk and the star valve keeps milk from traveling up the tube meaning 80% less gas, spit-up and fussing**. And 100% more smiles. Plus, a built-in heat sensing straw gives you extra reassurance that your milk is just the right temperature so both you and baby can feed comfortably. Bottle comes with Advanced Anti-Colic Slow Flow Nipple, compatible with Advanced Anti-Colic Medium Flow Nipple (3 mo.+) and Advanced Anti-Colic Fast Flow Nipple (6 mo.+) Guaranteed acceptance* *92% of more than 1200 parents who used our nipple with their child recalled that they accepted it within the first 3 attempts. 80% less colic**/Proven to reduce colic** **We consulted 210 parents who tried using this product to reduce their child’s colic symptoms, 80% of them agreed the bottle had successfully reduced the symptoms (June 2017)