Dr. Brown's Natural Flow Wide-Neck Baby Bottle Silicone Nipple Level 4, 2-Pack (WN4201-INTL)

✓ Super-soft 100% silicone nipple designed to fit all Dr. Brown's Anti-Colic Options+™ Wide-Neck bottles

✓ Works with Dr. Brown's Anti-Colic internal vent system, clinically proven to help reduce colic

✓ Helps decrease spit-up, burping, and gas for a more comfortable feeding experience

✓ Level 4 flow rate offers consistent, clinically tested feeding suitable for younger babies

✓ Available in 6 different flow levels, from 0m+ to 9m+ and thicker liquids, to match Baby's changing needs

✓ Provides a constant, comfortable feeding experience thanks to clinically consistent flow within each level