They are ideal for collecting, storing, transporting, freezing and feeding breastmilk.100% Bisphenol-A free materials - for the health of the babiesCan be used with all Medela BreastpumpsDishwasher and microwave-safe materialsNo cracking and splintering when droppedComes complete with slow flow silicon teat, lid with disk, 150ml capacity bottle and cap - please note the colour of the cap may vary.Expressed breastmilk can be stored in these bottles in the fridge or in the freezer and can be used direct from the bottle when thawed.These bottles are made from polypropylene and do not contain Phthalates, latex or Bisphenol-A, making them safe to store expressed breastmilk.Medela invest heavily in research and development to ensure that their breastfeeding products mimic a baby’s natural nursing rhythms giving a faster let down, more comfortable expressing and increased milk flow.Included: One 150ml bottle with large cap and Slow Flow Teat (0-3 months).