The only pacifier with flexing action that stimulates the motion of mother's nipple during breastfeeding. The first and only pacifier that has the flexing motion that's most like breastfeeding. Innovative flex design simulates the motion of mother's breast during breastfeeding. Soft, vented shield curves away from baby's mouth for better air circulation. Shield and nipple are made from soft, flexible material designed to feel more like mom. Easy to clean - open design. No protruding handle. Symmetrical design - no wrong orientation. Nipple and shield are one piece - more like mom. Baglet extends like mother's nipple during feeding.