Explore the world of gravity and build your own intergalactic gravitation park with the Ravensburger GraviTrax Starter Sets. This job lot includes the Balance Launch and Obstacle sets, providing a plethora of possibilities for creating unique rollercoaster routes and designing your own cosmic conqueror. With 509 pieces in total, these sets are perfect for architecture enthusiasts aged 8 and above. Construct complex structures and experiment with the forces of gravity to construct an endless array of creations. The durable plastic components ensure long-lasting fun and the versatility for endless gameplay.