The Twistshake Anti-Colic Baby Bottle is a BPA-free feeding bottle designed to minimize air bubbles and reduce the risk of colic in newborns. It features a super soft breast-shaped teat for natural comfort, a wide opening with mixer net for lump-free mixing, and a stackable powder container for formula on the go. Mama, this microwave and dishwasher-safe bottle makes feeding smoother for your baby and easier for you.