A useful aid for relaxing your baby, nuk soothers have a specially designed orthodontic shape that adapts to the shape of baby?s mouth to help exercise the lips, tongue and facial muscles, which promotes the healthy development of teeth and jaw. the nuk air system also helps to ensure the mouthpiece remains soft and flexible, while integrated grooves enable saliva to flow away from your baby?s mouth, preventing skin irritations. to sterilise the soothers, use steam, cold water or a nuk steriliser; not dishwasher safe. *independent market research, 307 mothers, germany 2017. box contains: 1 x nuk toy story silicone soothers 2pk 0-6 months