Breastfeeding is the most natural way to feed your baby, but it is not always possible. Feeding and sucking are vital to your baby's oral development and play an important role in breathing, jaw and muscle development.With the help of medical experts, Pigeon researched babies natural oral development to bring you the Peristaltic Feeding and Oral Development ranges. These products compliment the different stages of a baby's oral growth for natural development.Peristaltic Nipples Used by hospitals, Pigeon's Peristaltic Nipple is very soft and designed to be just like a mother's nipple. This unique design allows the nipple to stretch in response to the natural peristaltic movement of a baby's tongue, just like natural breastfeeding.-Peristaltic Nipples available S, M, L and Variable Flow Y Cut (leak proof). *Exactly like a mothers nipple*Promotes natural oral and jaw development*Prevents nipple confusion between breast and bottle*Helps to reduce colic