Nuk Pacifiers Orthodontic Shaped. You get two factory sealed packages that have 4 pacifiers in total. BPA free. Nuk pacifiers are rated #1. Nuk pacifiers have a new and improved nipple that soothes and calms baby better than their original nipple. It has an asymmetrical shape that helps promote healthy oral development by naturally fitting into your baby's palate. The scoop nipple cavity allows maximum tongue movement, which gently exercises your baby's tongue, palate and jaw and promotes proper teeth alignment by helping your baby avoid thumb-sucking. The heart shaped shield fits perfectly under baby's nose for easy breathing and less irritation. These Nuk pacifiers are BPA free with silicone orthodontic nipple and are made in Germany and the USA.