When babies start kicking‎,‎ grasping‎,‎ lifting their heads or sucking on a soother‎,‎ it is all an important part of their daily “fitness regime”‎,‎ because the muscles in their legs‎,‎ arms‎,‎ backs and even in their faces too‎,‎ have to develop and be exercised‎.‎ The interplay between an agile tongue‎,‎ powerful jaw muscles and a correctly‎-shaped roof of the mouth is an important requirement for healthy‎,‎ trouble‎-free breathing‎,‎ problem‎-free feeding and‎,‎ later‎,‎ speech development‎.‎ The NUK Baby Rose & Blue Soothers have the NUK shape that is right for the jaw‎.‎ The anatomically‎-shaped mouth shield fits your child´s face perfectly‎.‎ The soother is available in two styles‎.‎ The teat  is made of silicone‎,‎ a synthetic material that is completely free from harmful substances and has a pleasantly smooth surface‎.‎ This material is very soft‎,‎ particularly heat‎-resistant and neutral in taste‎.‎ Silicone is less flexible than latex and a silicone NUK Soother should be replaced once the first signs of use appear ‎(‎e‎.‎g‎.‎ scratches‎,‎ bite marks or small holes‎)‎‎.‎