- Metal & Plastic
- GRAVITRAX: The popular STEM toy for boys and girls ages 8 and up - over 6 million sold worldwide
- WHAT YOU GET: 13 pieces, including adjustable bridges, new extra-long narrow and slow tracks and more
- INNOVATIVE: The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with gravity, magnetism, and kinetics to propel your marbles to the finish
- CLEAR INSTRUCTIONS: Comes with clear instructions so that you can start building and playing within minutes
- FOSTERS STEM SKILLS: Playing and building with GraviTrax promotes problem solving, creativity and encourages cooperative play with others