Several small holes inspired by the mother's breast ducts ensure a smooth and natural milk flow. Wide and flexible support area for the baby's lips; very soft teat top, similar to the mother's nipple. Innovative anti-colic valve allows a constant flow of liquid and prevents the baby from swallowing air, causing colic. Size 1, 0-6 months, S (3 small holes for breast milk, tea and water). Fits all Nature Sense bottles, BPA-free. NUK Nature Sense Teat. Especially in the first months of life, we pay close attention to our babies. One particularly important aspect is the transition from breastfeeding to bottle-feeding, which often proves challenging for mothers. To support you during this sensitive phase, we've drawn inspiration, like never before, from the mother's breast and developed: the new NUK Nature Sense teat! This innovative teat, with several small holes (instead of just one) like the mother's nipple, ensures a smooth and natural milk flow for the baby. This way, your little one feels secure and can accept the bottle more easily. What makes this teat so special: inspired by nature. Whatever the reason you want to introduce the bottle, supplement breastfeeding or end it, the truth is that many babies have difficulty getting used to the bottle. This is where the NUK Nature Sense teat comes in, with its several small holes inspired by the mammary ducts of the mother's breast, guaranteeing a smooth and natural milk flow. The teat has a wider and more flexible support base, allowing the baby to control the milk flow. The innovative anti-colic valve allows the baby to drink without pauses, as if at the mother's breast, helping to prevent air ingestion. The soft teat top, also inspired by nature, is particularly flexible and adaptable to the baby's mouth, just like the mother's nipple. The Nature Sense teat has advantages not only for your baby, but also for you. In fact, the whole family can benefit from the development of this nature-inspired range. The closeness a mother feels when breastfeeding no longer has to be limited to the mother. With the NUK Nature Sense teat, the father, siblings, grandparents and friends can also experience this closeness during bottle feeding, allowing the mother to benefit from some breaks. The perfect combination: Nature Sense teat and bottle. The teat, highly rated and recommended by mothers, midwives and pediatricians, is available in 2 sizes with different numbers of holes (S, M, L) – depending on the contents of the bottle, making it suitable from breastfeeding to thicker liquids. As your baby grows, simply change to the larger teat size. Available teat sizes are: size 1 from 0 to 6 months and size 2 from 6 to 18 months. The combination of the teat and the corresponding NUK Nature Sense bottle makes this an unbeatable range. With the help of Mother Nature and our own inspiration, bottle feeding has never been so simple. Try it, and stay one step ahead!