Medela Silicone Breast Milk Collector, 1 Ks, Breast Milk Storage for Women, Store your pumped breast milk safely for a later time with the Medela Silicone Breast Milk Collector product which helps you keep your breast milk handy any time you need to use it. Characteristics: secure closure for easy storing of breast milk in the freezer or the refrigerator can be sterilised How to use: Use the bag to store the pumped breast milk in the fridge or in the freezer.