Tommee Tippee Advanced Anti-Colic Feeding Bottle, 260Ml X1 - GirlThe Unique 3 Piece Anti Colic Technology Draws Air Away From Milk And The Star Valve Keeps Milk From Travelling 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. Includes Slow Teat 80% Less Colic Designed To Reduce Colic Symptoms For Less Gas, Less Spit Up And Less