This Medela breast milk follow on pack includes 2xMedela 250ml breast milk storage bottles with lids and 1x250ml bottle with a medium flow teat. The bottles are light and ideal for collecting, storing, transporting, freezing and feeding breast milk. The bottles fit all Medela breast pumps. The bottles are dishwasher and microwave safe with no crackling or splintering when dropped. Age range birth+.