Backed by 60 years of research on baby’s natural suckling motion, our SofTouch™ nursing bottles is the best and closest you can get to moms, tested and approved by more than 1 million babies worldwide. Moms have 99 other problems but nipple confusion ain’t gonna be one of it! The real simulation of the latching allows combining breast and bottle feeding to be possible. Anti-colic as our specialized technology of Air Ventilation System (AVS™) reduces intake of gas, a potential cause of colic.   Made with PPSU (Polyphenylsulfone) material, this range has a higher heat resistance of 180°C, safe for babies and worry-free for parents! For 0+ months. 160ml comes with SS size nipple specially designed for newborn baby. The opening of the nipple is round-cut which allows milk to flow out consistently and gradually. Newborns have yet to develop any jaw muscles, thus the nipple is designed to support their sucking ability at this age. For 3+ months. 240ml comes with M size nipple that has a Y-cut opening on the nipple. Milk flows out when there’s pressure on the nipple, encouraging and babies to suck to get the milk out. Babies at this age have developed some jaw muscle movements and is able to suckle to get milk out. Clinically tested for seamless switch between breast and bottle Shaped to help minimize swallowed air Advanced venting system to prevent gas SofTouch™ Peristaltic PLUS Nipple – 100% silicone, super soft and flexible to allow for natural and smooth tongue movement Bottle is made from Polyphenylsulfone (PPSU) material with high heat resistance and excellent durability BPA Free