Natural flow & comfort at every meal \ \ NUK First Choice silicone nipples are designed to offer a natural breastfeeding sensation and a smooth flow, adapted to the needs of the baby after the 6th month. Their special ergonomic shape imitates the shape of the mother's breast during breastfeeding, facilitating natural positioning in the mouth. \ \ \ NUK Anti-Colic System \ \ The built-in NUK Anti-Colic function allows a natural flow of milk, reducing air swallowing. This helps to reduce bubbles, colic and discomfort, offering calmer and more enjoyable meals. \ \ \ Temperature control for greater confidence \ \ The nipples are compatible with NUK First Choice bottles that have a temperature control indicator. The indicator changes color from blue to white when the content is too hot, offering immediate visual confirmation before feeding. \ \ \ New sealing cap \ \ The new cap effectively protects the nipple from dirt and leaks. It is compatible with all NUK First Choice nipples and replaces the older sealing disc, making assembly easier. \ \ \ quality confidence \ \ NUK is a top choice for maternity hospitals in Germany for feeding newborns, confirming the reliability and quality of the series. \ \ \ age: 6+ months \ size: XL \ material: silicone \ suitable for thicker foods \ NUK anti-colic system \ compatible with NUK First Choice bottles \ bpa free \ \