The NUK Happy Days 2 Pack Silicone Soother Size 1 - Pink have a specially designed orthodontic shape, which adapts to the shape of the baby"s mouth and helps exercise the lips, tongue and facial muscles, promoting healthy development of both teeth and jaws. The flat shape of our soothers helps prevent pressure marks and avoids being displaced from baby"s mouth. The NUK Air System helps to ensure the mouthpiece remains soft and flexible, and the integrated grooves enable saliva to flow away from baby"s mouth, avoiding skin irritations to the area.Innovative soother bag packaging to store the soothers when at home or out and about