Improved! 100% baby approved orthodontic shape. Soothes & calms baby better (Based on Market Research, June 2013, tested with 110 NUK pacifier users). BPA free. Naturally fits baby's mouth for healthy oral development. Unique NUK orthodontic shape - now even better! 1. True orthodontic shape nipple - naturally fits baby's mouth. 2. Integrated channels - less palate pressure. 3. Scoop nipple cavity - maximizes tongue movement. 4. Same heart-shaped shield - prevents irritation. www.NUK-USA.com. Made in USA.