Ravensburger GraviTrax Building Expansion Accessory Set

Ravensburger GraviTrax Building Expansion Accessory Set - New, sealed item Product Details •GraviTrax: Building Expansion – Take your track to new heights with the “GraviTrax Building Expansion” set! (GraviTrax Starter-Set required) •INNOVATIVE – The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with gravity, magnetism, kinetics. •STEM TOY – Boys and girls ages 8 and up can experience educational and science play. The franchise has sold over 15.5 million units worldwide and has ranked as the No.1 marble run system in the U.S., according to the NPD Group. Description The Building Expansion offers over 25 additional elements to expand your track vertically. You’ll increase the action when increasing the height of your run. Experiment with the combination of height tiles, base plates, freefalls, switches and even another level. See how high you can build your track before getting the marbles to the finish. GraviTrax Starter-Set required GraviTrax is a creative, modular, expandable track system that challenges children to use their imagination to build their own marble runs! GraviTrax construction sets use STEM-friendly concepts while building critical thinking and problem-solving skills. Each set is open-ended with boredom-busting play options for hours of fascinating fun. Master the basics then simply add expansion sets and accessories to propel those metal marbles around the tricked-out track of your dreams!