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With a full moon glowing in the night sky
and basic addition
especially when it is being as attentive as now
The beautiful Brook Trout swim so innocently
GraviTrax: Interactive Track System - Tip Tube (Expansion)* STEM With a full moon glowingExperience 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!
US$ 49.00
US$ 189.50
US$ 189.00
US$ 174.50
