Dr Brown’s PreVent soother was designed by professionals to include a patented suction-free air channel which opens by itself as your baby sucks to help lower the pressure inside their mouth which has been known to sometimes cause dental issues and cross bites. The PreVent soother also features a contoured shield design to help keep it from coming into direct contact with your child’s face. This soother is perfect in helping to soothe your little one and if you also use Dr Brown’s teats you will benefit from the fact that these soothers have been molded to the exact same shape for consistency and calmness for your infant. Features: Reduces soother related dental issues Suction-free air channel for extra comfort Curved shield allows for plenty of room Suitable for babies ages 12 months + 2 x soothers included within the box