Your baby's comfort and health are enhanced by the BPA-free, slow-flowing nipples of the Philips Avent Anti-colic baby bottle. These anti-colic bottles complement your decision to either breastfeed or bottle feed your child, or use both. These Anti-colic BPA-free bottles were created after substantial research and clinical trials, and they have been shown to lessen colic and discomfort**. The Anti-Colic bottles are perfect for medium-sized feedings because they are made specifically for infants and feature an extra-soft silicone Slow-Flow nipple with two holes. Each bottle has a capacity of 9 ounces.