• As seen on TV - GraviTrax is an innovative marble run and Construction toy for boys and for girls ages 8 years and up. It is an ideal christmas gift or birthday gift for smart, curious kids. Stop, collect, and release! Round up your marbles with the Gravitrax Tip Tube and set them free again!
• Innovative - The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with engineering, gravity, magnetism, and kinetics to propel your ball to the finish.
• Infinitely Expandable - Gravitrax in fully expandable with a large range of expansion pack and accessories! An amazing building toy!
• Develops critical skills – Playing and building with GraviTrax builds spatial reasoning and planning skills, and provides a great stealth learning experience.

Experience the power of gravity! GraviTrax is the all Construction toy STEM track system from Ravensburger! Use your imagination to build superb tracks and set the gravity spheres rolling! Stop, collect, and release! Round up your marbles with the Tip Tube and set them free again! Combine the Tip Tube with the GraviTrax Starter-Set and create unique action in your track system. How long can you pause your marbles with the Tip Tube? This STEM system [Science, Technology, Engineering and Maths] is an ideal one to teach kids about gravity, magnetism, kinetic energy and fun. Hit a snag? Freestyle with your own track design or use the tasks and blueprints included to help you to get started in the world of GraviTrax! Are the gravity spheres stopping or flying off before reaching the end target? Time for some problem solving. Rebuild and try something different!