The tests found no such clear results as hoped! In the experiments with the rainbow you have to look quite hard to see the colors. And the Knetkugel falls faster to the ground like the Styrofoam ball! Otherwise, everything is in the box you need, but it should be in an average budget. Certainly, the packaging of individual utensils could have been better, but I do not find as a big problem. Otherwise, the box is great fun and the kids learn certainly something.
