0M+, Slow Flow Silicone: Ideal For Newborns And Babies A Few Months Old. Symmetrical, Elongated And Flat Shape: It Imitates The Mother'S Nipple Reshaped By The Baby'S Sucking: Elongated And Widened To Enhance The Peristaltic Action Of Breastfeeding, Perfect Seal And Latch, Easy Acceptance And Easy Sucking. Soft-Feel Silicone: The Special Finish Gives The Nipple A Velvety, Soft Feel Similar To Mother'S Skin For The Most Natural And Comfortable Sucking. Compatible With Luxury Bottles: The Anti-Colic Valve At The Base Of The Nipple Makes It Compatible With Luxury Bottles To Prevent Nipple Collapse And Air Ingress, Thus Reducing Colic And Regurgitation, Enabling Smooth And Comfortable Feeding. Nipple Acceptance: 9 Out Of 10 Babies Accept It. Consumer Test On 450 Babies In Italy, 2019 Easy Sucking To Enhance The Natural Peristaltic Action Of Breastfeeding