Ravensburger UK 27615 GraviTrax XXL Start Set-Marble Run & STEM Boys & Girls Age 8 Years and up-Multi Award Winning Toy-English Version, Multicoloured

"Experience the power of gravity! GraviTrax is the all Contruction toy STEM track system from Ravensburger! Use your imagination to build superb tracks and set the gravity spheres rolling! 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 ...