Have a difficult time finding the right pacifier for your baby? The new NUK pacifiers are accepted by 95% of babies and feature the improved orthodontic nipple shape. NUK's asymmetrical nipple naturally fits the baby's palate and is now improved to allow for more room for a natural sucking motion, reduce pressure on teeth and jaw, and help prevent teeth misalignment. Invented over 60 years ago by pediatric dentists and doctors, the NUK pacifier is modeled after the natural shape of a mom's nipple while breastfeeding. This makes for an easy transition from breast to pacifier and back. The NUK heart-shaped shield fits perfectly under the baby's nose for easier breathing and prevents irritation. Now all NUK pacifiers are available in a reusable storage case that allows for easy cleaning in the microwave. With super-cute designs, this pack of 2 orthodontic pacifiers is ideal for your child aged 18-36 months. (Based on Market Research, 2017, tested with 307 pacifier users)