To make the change from breastfeeding to bottle feeding that little bit easier NUK have developed a range of baby bottles to do just that. On this bottle the teat is designed with a super soft zone to adapt to the shape of the baby's palate. The teat also has an extra wide lip support which replicates breastfeeding as mush as possible.. The bottle is designed with a sealing disc that prevents it from leaking and also it is compatible with all other First Choice and First Choice+ teats. 100% BPA free.