Tommee Tippee Closer to Nature Fast Flow Feeding Nipple 6 Months+ 2 Pack 423963 is Designed to Provide a Quick and Comfortable Feeding Experience for Older Babies. This Nipple Features a Soft, Breast-like Shape That Promotes a Natural Latch, Making It Ideal for Babies Transitioning From Breastfeeding or Needing a Faster Flow. The Anti-colic Valve Helps Reduce Air Intake, Minimizing Fussiness. Made From Safe Silicone, These Nipples Are Easy to Clean and Replace, Ensuring Hygienic and Efficient Feeds.