Dozen 2.7oz containers & lids. 12-pack–80ml (2.7oz.) containers and lids for easy storage in freezer or fridge Compatible with all Medela breastpumps Safe for the collection, storage and feeding of breastmilk Each container sealed and guaranteed sterile inside and ready to use Chosen for you and your baby - All parts that come into contact with breastmilk are BPA/DEHP Free.