Once breastfeeding is over then comes the process of bottlefeeding, to help make this easier and smoother, NUK have this 300ml bottle 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 just like the mothers nipple would have done during breastfeeding. 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.