Developed by a peadiatric dentist to help prevent dental issues - and now easier to see and find. Features a patented Suction-Free Air Channel, helping to reduce the suction and palatal pressure that can create dental issues such as cross bites. Soft, suction-release bulb spreads wider as baby sucks for low-pressure comfort, plus thin-stem design is minimally intrusive on baby's mouth. Contoured "butterfly" shaped shield curves away from baby's face for comfort, plus allows plenty of room for little noses and cheeks. Safe illumination makes it easy for baby and parents to find at night.