Hegen PCTO™ 60ml/2oz Breast Milk Storage PPSU, 6-PackIntroducing half a dozen miniature 60ml 2oz air tight breast milk storage containers perfect for babys first few weeks (0 4 weeks) of feeding and breast milk storage. As you regulate your milk production and baby gets used to latching and feeding from a bottle, use these containers to maximise your fridge storage and feeding space. Simply attach the Manual Breast Pump Module to express into the storage container, then swap the pump with a Breast Milk