Medela Breastmilk Bottles 250mL - 2 PackDescription Medela's breast milk bottles are compatible with all Medela breast pumps and Calma, making it easy to pump, store and feed using the same container. This means not a single drop of your precious breast milk is wasted and you have less washing up to do. The bottles also feature screw on lids so that they do not leak when they are stored in the fridge or freezer, or transported when you are travelling. Feature The clear ounce and millimetre