2 Pieces Standard Caliber Sense Oriented Nipple

Provides positive pressure vacuum free feeding similar to breastfeeding; and helps reduce colic, spit up, burping and gas by eliminating negative pressure and air bubbles. Natural flow baby bottles are and contain no PVC, lead or phthalates, and have received numerous design awards and acclaim from the medical community. In fact, many of our bottles go to hospitals, NICUs, and doctor offices. Most important, moms are talking and they're sharing with excitement the improved feeding habits of their babies. In keeping with the standards of our baby bottle.