The Step Up family milk containers are really handy when breast-feeding as they can be used to store excess milk and allow you to feed baby even when physical breast-feeding is not possible. The hermetic lid allows the hygienic storage of mother’s milk. Made of unbreakable, light, easy to sterilize poplpropilene, they can be stored in the fridge or freezer. The package includes the Chicco Step Up 1 ring and teat.