Dr. Brown's Natural Flow 4 oz. Standard BPA Free Bottles are BPA, PVC, LEAD PHTHALATE Free
- Unique internal vent eliminates the vacuum and air bubbles to help reduce colic, spit-up, burping and gas.
- By eliminating the negative pressure, it can help reduce build up of fluid in baby's ear.
- Positive-pressure design mimics breastfeeding and is ideal for breast milk and formula alike.
What's In the Box:
- Level-one silicone nipple.
- Two-piece patented internal vent.
- Cleaning brush.