The Lansinoh NaturalWave® bottle pacifier is designed to fix normal natural feeding patterns in the child - Without BPA and BPS - Clinically tested to perpetuate good natural feeding patterns in the child - It stimulates the natural development of oral organs - Allows your child to use the skills acquired during breastfeeding -Air Ventilation System (AVSTM) reduces air loss, potential cause of colic in children -Developed on the basis of over 50 years of infant feeding studies - Made of 100% silicone, soft and flexible -Free flow dummy (1) - for feeding infants aged 0-3 months -Medium flow dummy (2) – for feeding infants aged 3-6 months - Fast flow dummy (3) – for feeding infants after 6 months and for administering dense fluids (e.g. coughs)