My Transition Bottle 270mlMade from lightweight, BPA free Tritan, Aiwibi Baby Bottle is shatterproof and durable. The breast like soft silicone nipple minimizes air intake and nipple confusion, while vertical lines keep its shape. An advanced anti colic system reduces bloating, and the inverted triangle vent valve ensures smooth, leak free flow. With a unique handle for easy grip and a gravity ball design for 360free suction, it includes a nipple brush and replacement nipple.