Maymom brand 24mm pump parts for Medela pump, 2 sets plus 4 extra valves w/membranes and 4 extra membranes… One set was only used a few times and the other set was just opened. All parts were sanitized immediately after they were used…

Not sure what to charge so we can decide on that later but just looking to get some of my money back from it. The size wasn't quite right for me and my pumping output didn't work with it.