Pre-sterilised and ready to use, the Vital Baby breast milk storage bags are perfect for storing every drop of expressed milk safely.The leak-proof, secure seal ensures no milk is lost when storing in the fridge or freezer and their wide neck and free-standing base make each bag easy to fill. Simply remove the pre-perforated tab when you are ready to fill the bag, then pour in your freshly expressed breast milk with ease, and securely lock the freshness into the bag with the easy use zip fastener. Re-opening the bag by simply cutting along the dotted line, ensures that your valuable breast milk does not pour over the sealing zip which has been handled during filling. This avoids possible contamination and maintains a high standard of hygiene, easily and effortlessly.There are 30 x 250ml bags in each box, so you can always have breast milk on hand when you need it.