Create action-packed track systems with 18 different construction elements in this GraviTrax Starter-Set. Discover how the laws ofphysics affect the track your ball takes. The construction plans and tasks provided make it easy for you to begin and soon you willconstruct your own track designs. The goal is to create the journey! With GraviTrax you can discover the world of gravity in a playful way. Fun factor and learning value are linked in the product concept by infinite possibilities of use, tasks with lasting play fun, building instructions with interesting parcours and by free building of the children. Bonus: Download the free app for your smartphone or tablet, build your own marble run system and play with different marbles and camera perspectives from the ball’s point ofview! Test new layouts in the app and then build them in real life with your GraviTrax system. Included in the GraviTrax Starter-Set: Instructions, construction plan booklet, task booklet, 4 base plates, 2 transparent levels, 6 balls, 40 large height tiles, 12 small height tiles, 21 curves, 3 junctions, 2 switches, 1 3-in-1 block, 1 vortex, 1 launch pad, 1 magnetic cannon, 3 long tracks, 6 medium tracks, 9 short tracks, 1 finish line, 4 basic tiles, inserts for basic tiles: 2 catchers, 1 freefall, 1 splash, 1 landing.