Breastmilk Storage Solution. The perfect collection to complement a Medela breastpump. This complete, BPA-free system allows mom to safely store, organize and protect her breastmilk throughout her breastfeeding experience. Medela breastmilk bottles, labeling lids and Pump & Save breastmilk bags are compatible with Medela breastpumps and ideal for short- or long-term storage. Contents: (6) 5 oz/150 mL breastmilk bottles; (6) 2.7 oz/80 mL breastmilk bottles and lids; (6) breastmilk labeling lids; (20) 5 oz/150 mL Pump & Save breastmilk bags; (1) storage tray; (1) breastmilk storage guidelines magnet.