The Medela breast milk bottle with teat is a versatile container for pumping, storing, transporting and feeding expressed breast milk. Medela bottles are shatterproof and available in two different sizes: 150ml with slow flow teat and 250ml with medium flow teat. The bottles are dishwasher and microwave safe and are made from BPA-free materials. They can be used with all Medela breast pumps and teats.