Ravensburger GraviTrax XXL Starter Set Marble Run and STEM Toy for Boys and Girls Age 8 and Up – Amazon Exclusive and 2019 Toy of The Year Finalist

With the gravitrax interactive track system and marble run, you can design and build your own race tracks and experiment with gravity, magnetism, and kinetics to propel your ball to the finish. With a variety of tiles, levels, tracks and features, you can control the speed of each ball. The open-ended building concept offers endless possibilities to design a different track every time you play. Add flair and speed to your tracks with expansion sets and action accessories. Gravitrax is a fun STEM toy for boys and girls that comes with over 200 pieces and 3 action accessories already included. The large gravitrax starter set offers everything you need to begin building your own action-packed track systems. Discover how the laws of physics affect the track your ball takes with curves, crosses, freefalls and even a cannon. Experiment using different heights and angles to control the speed of the ball. The included tasks and construction plans introduce you to the world of gravitrax. Or let your creativity take over and begin constructing your own track designs from scratch.

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A bestselling construction activity for boys and girls 8 and up – over 6 million sold worldwide
Includes 242 pieces and 9 ready-to-go track instructions to start creating your own tracks
The ideal Christmas gift for creative, curious kids who love to build
Power the marbles with gravity-based elements in a race to the finish
Customize and experiment with tricks and stunts to keep the marbles rolling faster and further.Experience educational and science play with 24 problem-solving building exercises