Medela's breast milk bottle with teat is a versatile container for pumping, storing, transporting and feeding expressed breast milk.Pumping and feeding breast milk is one of the best things you can do to support your baby's development. If the pumped breast milk is handled correctly, it contains all the natural vitamins and nutrients your baby needs. The easy-to-use bottles from Medela are available in 150 ml and 250 ml sizes, and they are graded so that you can measure the milk in milliliters. The practical, BPA-free bottles can be combined with all Medela breast pumps, so you can pump, store and feed with the same flexible container. The bottle's teat is available in two versions – with slow or medium flow – so you can adapt the breast milk bottle to your growing baby, regardless of age and needs. A cap is included so you can keep the teat clean even when you're on the go. The breast milk bottles are dishwasher and microwave safe.