Maymom Breast Pump Kit for Medela Pump in Style Advanced Breast Pumps (29mm)

Contains 4 valves, 6 membranes, 2 tubes and 2 one-piece breastshields (29 mm); One-piece means that shield and bottle connector are in one-piece (fused together); This kit can serve as Replacement Parts for Medela Breastshield & Personal Fit Connector, Medela Tubing, Valves and Membranes