Take your marble run to the edge 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.
Comes complete with instructions and construction plan, and 185 total pieces!
Suggested for ages 8 to Adult