This is the Medela handsfree breast pump. It comes with cups in two sizes: 24 mm and 21 mm. The smaller one (21mm) was never used.
I found it a very comfortable pump, easy to take with you.
I have an additional membrane and a package of storage bags (opened, but used only a few, approximately 45 left)
Possibility to pickup in Birmensdorf or at ZH HB