The Ultra Air 18 M+ features extra-large air holes for soft and dry skin, as well as an extra firm nipple for growing teeth and gums. The particularly large air holes ensure gentle ventilation of your baby's skin while keeping it soft and dry. The Ultra Air offers a lightweight shield with rounded edges for maximum comfort. The symmetrical nipples support the natural shape of your baby's palate, teeth, and gums. Additionally, they are particularly stable, making them ideal for growing mouths. All components of the Ultra Air pacifier are lightweight and designed for a pleasant skin feel, including the silky soft nipple. The Ultra Air transport container can also be used as a sterilizer. You just need to add some water and place it in the microwave. Then you can trust that it will be clean for the next use.