GraviTrax: Interactive Track System - Lifter (Expansion) STEM the Weasley family and of

the Weasley family and of course

4 Red Gobnobs

Play Crazy Bocce anywhere with the cube like "balls" ensuring that you can play on any slope including driveways

Gift sets include:

GraviTrax: Interactive Track System - Lifter (Expansion) STEM the Weasley family and ofExperience the power of gravity! GraviTrax is the 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 and blueprints included to help you to get started in the world of GraviTrax!