Safe soothing has never been smarter! Dr. Brown's Prevent Pacifiers are as adorable as they are effective. Designed by a paediatric dentist, the 100% silicone bulb features a patented suction-free air channel and thin bulb stem that reduce pressure inside baby's mouth, helping prevent dental issues such as posterior crossbite down the road. Prevent Pacifiers have a size for most ages, ranging from 0m to 18m. The bulb is taste-free, odourless, and keeps its unique shape over time. , , The Contoured Shield curves away from baby's face to reduce the risk of pacifier rash on little cheeks and noses. Prevent Pacifiers are easy to clean and are dishwasher (top rack) and sterilizer safe. Electric sterilization and boiling water only do not sterilize baby pacifiers in the microwave