The Dr. Brown's Natural Flow BPA free baby bottle is the only baby bottle that features a patented internal vent system. This vent eliminates the air bubbles and vacuum effect to allow positive-pressure feeding with no air - similar to breast-feeding. Designed to:Reduce colic, spit-up, burping, and gas Prevent air bubbles from forming in milk or formula Help reduce fluid in the ear Prevent nipple collapse Features:Made from BPA free polypropylene plastic Easy to clean and top-rack dishwasher safe Connects directly to most breast pumps Includes 6 high-grade Level-One silicone nipple, patented two-piece internal vents, travel disks, caps, cleaning brush, and instructions

• 2 packs of 3
• Made from BPA free polypropylene plastic
• Reduce colic, spit-up, burping, and gas Includes 6 high-grade Level-One silicone nipple, patented two-piece internal vents, travel disks, caps, cleaning brush, and instructions