Standard 8-ounce Dr. Brown’s Natural Flow baby bottle, with Level-One silicone nipple and cleaning brush. Created by a physician, Dr. Brown’s Natural Flow baby bottles feature a patented internal vent system that helps to reduce colic, spit-up, burping and gas. The positive pressure design allows babies to feed comfortably 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