Nuk hello kitty soothers silicone size 2 limited edition have a specially designed orthodontic profile that adapts to the shape of babys mouth. This helps to exercise the lips, tongue and facial muscles, which promotes the healthy development of teeth and jaw. The flat shape of our soothers helps prevent pressure marks and also stops the soother from falling out of baby’s mouth. The nuk air system helps to ensure the mouthpiece remains soft and flexible, and integrated grooves enable saliva to flow away from babys mouth, preventing skin irritations. Nuk soothers are naturally shaped and naturally soothing. Suitable for children aged 6 18 months. Pack contains 2 x silicone soothers, 1 x purple, 1 x pink. Approved by the british dental health foundation. Sterilise using steam or cold water sterilisation or in a nuk steriliser dishwasher sterilisation is not recommended as this can cause material damage. Bpa bisphenol a free.