Easy latch natural feel nipple for smooth transition between breast and bottle for u0026#34;just like Momu0026#34; feedingsnOptimum venting valve with slow flow nipple for less air intake and less discomfort for babynThe nipple shape on the pacifier is more like a bottle nipple for a more familiar feeling for a babynEasy hold design and accurate feeding and measurement markings on bottlenAlways BPA and phthalate freen