Peristaltic Nipple Design: The nipple is designed to simulate the smooth wave-like lapping movement of a baby's tongue, which naturally draws milk from a mother's nipple. This design aims to promote a comfortable and efficient feeding experience for the baby. Breastfeeding Alternative: While breastfeeding is considered the best and most natural way to feed a baby, the Pigeon Flexible Peristaltic Nipple provides an alternative feeding option for situations where breastfeeding may not be possible or preferred. Pack of Two: Each pack contains two nipples, providing convenience for parents who need replacements or backups. Size M: This particular pack includes nipples with a medium size, suitable for babies who require a medium flow rate during feeding. Flexible Material: The nipples are made from flexible material, allowing for gentle compression by the baby's mouth and promoting a natural sucking motion. BPA-Free: The nipples are free from Bisphenol A (BPA), ensuring that they are safe for use with babies. Overall, the Pigeon Flexible Peristaltic Nipple M 2 Pack offers a feeding solution that aims to replicate the natural breastfeeding experience, providing comfort and ease for both babies and parents. (description exceeds maximum possible length)