With this fischertechnik DYNAMIC XM Construction Set and Educational Toy, pure marble run action is guaranteed. After being catapulted onto the marble run's launching pad via a mechanical clamping device, the marbles bounce off and land in the rotary funnel. To ensure that the marbles land safely in the collection tray, the launching pad can be adjusted around three axes. In total, three fun models can be built from this construction set. For even more action, there are also free building instructions available on the fischertechnik homepage for the possible combination of this kit with the Dynamic L2 or Dynamic XXL.