Thanks Baby's breast milk storage bag (8.45oz) has been carefully designed by mothers of babies who need this valuable product that covers what mothers’ need for baby. It is designed for convenience, simple to use, most importantly provision of hygienic functions for both baby and mother with highest quality standard. It is leak-free and self-standing with a double zipper bag and has an extra outlet that provides further hygiene and convenience, yet it is designed for easy cut without needing any extra tools to cut and store the bag into freezer or fridge One can write date and time mark to track the history of the bag giving an extra value-added feature. The volume mark gives mother to know approximate volume of the bag to feed.