Safe soothing has never been smarter! designed by a pediatric dentist, the 100% silicone bulb features a patented suction-free air channel and thin stem that reduce pressure inside baby’s mouth – helping prevent dental issues such as crossbite down the road. taste-free, odorless bulb that keeps its unique shape over time,from outer space to under the sea, there’s a wide range of playful prints for every baby,fun and functional shield shape to fit baby’s face,dishwasher (top rack) and sterilizer safe. bpa free