Mila's Keeper Glass Breast Milk Storage Bottles come in two sizes, standard and wide neck, to accommodate different size pumps. Make sure you know which neck size is the right storage bottle for you. For example:
Standard size: Compatible with Medela Breastpumps
Wide Size: Compatible with Spectra Breastpumps
Note: If you are not pumping directly into the storage bottles, it does not matter which size you choose.
Volume: 5 ounces | 150 ml