Developed by a pediatric dentist to help prevent dental issues. Helps to lower the pressures inside the baby's mouth. These pressures can sometimes create dental issues such as cross bites. Palatial pressure is lessened by creating an air channel that reduces suction and spreads apart when baby is sucking. This Patented Suction-Free Air Channel opens up as baby sucks for low pressure comfort. Suction-Free Air Channel helps reduce suction and palatal pressure. Soft, suction-release bulb spreads wider as baby sucks for low pressure comfort.