Based on nature: the orthodontic NUK shape simulates the mother's breast during breastfeeding. Even more tooth-friendly thanks to improved shape: less pressure on jaws and teeth. Extra soft top and extra flat teat part, extra thin and particularly narrow teat neck Optimal fit to the palate and more space for the tongue. Size 0-6 months, BPA free, 2 pieces per pack, different colours and designs.   Nuk Genius Color Silicone Soother for 0-6 month babies in a 2-S sterilization pouch The shape of the Nuk pacifier, adapted to the jaw, is constantly evolving from the specialist team of doctors and optimized on a consistent basis. Teeth-friendly: maximum softness and flexibility thanks to built-in soft canals along the nipple that minimize pressure on the jaw and teeth. The nipple is made of silicone. Physical shape: The orthodontic shape of NUK resembles that of the mother when breastfeeding and therefore follows the pattern of nature. More space: The special concave shape gives the tongue more room for the mammals to move naturally. NUK Air AIR System: Through the NUK air vent valve the air leaves the nipple, so the pacifier remains particularly soft and supple.