Dr. Brown's Options+ Wide-Neck Bottle is a 9 oz/270 ml baby bottle featuring an innovative anti-colic vent system and breast-like nipple shape. This pediatrician-recommended bottle is designed to reduce feeding problems while making the transition between breast and bottle feeding easier. Key features: • Wide-neck design with breast-like nipple shape • Anti-colic internal vent system • Clinically proven to reduce colic and gas • Preserves nutrients in breast milk and formula • Removable vent system for feeding flexibility • BPA-free materials • Dishwasher and sterilizer safe The bottle comes with a unique venting system that can be removed as baby's feeding develops, eliminating the need to switch to different bottles. The nipple is engineered for consistent flow and proper latching. When used without the vent system, it functions similar to standard nipple-vented bottles. Suitable for babies 0 months and up, this single pack includes one 9 oz/270 ml wide-neck bottle.