Our pacifiers support the healthy development of baby's jaw. The soother shield is perfectly adapted to the contours of the mouth. Chin protection prevents skin irritation above the chin. Rounded shield edge is soft and smooth and prevents pressure points. The Extra-large ventilation holes along the sides of the shield enable baby's sensitive skin to breathe optimally. All pacifiers will be delivered with a hygienic pacifier cover made of BPA free Polypropylene. CARE: Sterilize the soother in boiling water for five minutes and let it cool. Gently squeeze any excess water out of the nipple. For hygienic reason we recommend replacing the pacifier every 4 to 6 weeks.