The NUK Perfect Match bottle is designed to offer your baby a natural and relaxed feeding experience, similar to breastfeeding. Soft silicone teat size S: Extraordinarily soft and elastic, it adapts delicately to the lips and palate, offering maximum comfort during feeding. Shape similar to the mothers breast: Promotes correct mouth position and allows a calm and natural flow of milk. Anti-colic system: Reduces air swallowing and helps prevent colic and regurgitation, improving the babys well-being. Temperature control: A handy indicator shows when the milk has reached too high a temperature, ensuring safe feeding. Safe Materials: Made without BPA, compliant with European safety standards.