Of course one must not expect a certified medical product for the price. It is designed from the ground also not optimal in the hand, but what you can already recognize the form and thus can not expect too much, but also the deduction of points. Aaaber: My wife has very happy, when I use the boat and back massaged her every now and then, what can I leave as a non-masseur quite nicely into the hands after about 10 minutes ... With the cow is not a problem, The four wooden knobs stimmulieren bill on a very good way the pressure points of my fingers while massaging, because my wife gefällts ... So the cow is for me an absolute workload ;-)