With the GraviTrax Starter Set XXL, you can build your own marble run empire. Create a massive course using the building elements and action stones, where the marbles roll to the finish line. The GraviTrax marble run system can be infinitely expanded with extensions, ensuring limitless building and play fun.

Contents: 6 base plates, 4 transparent levels, 9 marbles, 80 large height stones, 24 small height stones, 42 curves, 6 intersections, 4 switches, 2 3-in-1 pieces, 2 whirlwinds, 2 starting stones, 1 action stone Gauss cannon, 1 action stone looping, 1 action stone hammer, 6 long plastic tracks, 12 medium plastic tracks, 18 short plastic tracks, 2 target ladders, 8 base stones, inserts for the base stones: 4 catchers, 2 free falls, 2 splashes, 2 targets.