RESEARCH ON BABYS SUCKING BEHAVIOR It is based on research on the 3 natural movements that a baby does while feeding in Japan LATCHON LINE The new design with latching curve of the nipple is guiding for babys appropriate latch so as to achieve effective adsorption AntiColic System Shaped to help minimize swallowed air Advanced venting system to prevent gas SOFT FLEXIBLE 100 silicone rubber and BPA free For seamless switch between breast and bottle Its much closer to the softness of mothers breast helping smooth tongue movement STAGED FLOW Designed suitably for babys developmental stage For seamless switch between breast and bottle From SS to 3L size S Nipple Recommended Age 1 months