Philips Avent Natural Thick Flow Nipple for 6+ Months (Pack of 2)Philips Avent Natural Thick Flow Nipple for 6+ Months (Pack of 2) Designed for 6+ Months: Perfect for babies aged 6 months and above, this Natural Thick Flow nipple supports your babys growing feeding needs with a smooth, easy flow. Natural & Comfortable: The breast like shape of the nipple encourages a natural latch, providing a comforting and familiar feeding experience for your baby. Thick Flow for Growing Babies: The thick flow design offers a