The Medela Special Needs Feeder is designed for babies who are unable to create a vacuum due to certain syndromes and neurological disorders, or because they were born with a cleft lip or palate. The SpecialNeeds Feeder can be used with teats of two different sizesFeatures:Supports oral feeding in babiesHas a variable and controllable milk flow rate to suit the baby's abilities and effortsProvides help when babies cannot create a vacuum