The GraviTrax interactive marble run system has been developed to plan, build and optimise exciting marble runs. It needs to be experimented with gravity, magnetism and kinetics to move the ball from start to the target. The open concept allows almost infinite possibilities to design a different track every time. The GraviTrax Speed Starter Set is specially designed for the game at speed. It includes 185 pieces and is suitable as a toy for girls and boys aged 8 and over. The set provides everything you need to get started immediately and build action-packed courses. In a playful way, the children learn the laws of physics and discover for example how the ball happens the looping, the spirals and the two Gauss cannons. Different types of rails and tunnel elements allow you to control the speed of the balls. Building plans included in the set make it easier to enter the world of GraviTrax. However, the creativity of the children is quickly awakened and they build their own marble runs. A variety of expansion sets and action bricks complete the fun, innovative gaming experience.