Symphony Double Pumping Kit for double or single pumping with a Symphony breastpump. Contents: (2) standard size PersonalFit (24 mm) breastshields; (2) 150 mL BPA-free breastmilk bottles with lids; (2) valves; (4) membranes; (2) tubes; (2) membranes caps; (2) protective membranes; and instructions.