Pigeon PPSU Baby Bottle – 3 Design Pack (160 ml / 240 ml)Pigeon PPSU Baby Bottle 3 Designs (5oz 8oz) SofTouch Peristaltic PLUS designed to mimic natural breastfeeding Supports 3 stage natural sucking of infants: Latching on: Baby opens mouth to latch on the nipple and Sucking fossa Peristaltic tongue movement: Wave like motion to extract milk from breast Swallowing: Inner tongue lifts to move milk to esophagus Wide neck bottles for easy cleaning and nipple selection Comes with SS nipple for newborns soft