Ravensburger GraviTrax Pro Vertical STEM Marble Game Starter Set

GraviTrax goes vertical with the GraviTrax PRO: Marble Run Starter Set Vertical. With 149 elements that include unique components, this set offers

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Ravensburger Gravitrax Pro Vertical Stem Marble Game Starter Set : Target

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Take your marble run to the edge with the “GraviTrax PRO Extreme Starter-Set”! Test your creative limits and the laws of physics with the “GraviTrax PRO Extreme Starter-Set”! Vertical components and four action accessories from the PRO series (Splitter, Mixer, Turntable, Helix) combine to create more challenges, more possibilities, and more extreme fun! Set up’s a snap as children explore STEM concepts while engaging in independent, creative play.