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“This shirt truly feels great
Recommended Age: Suitable for ages 12 and up
Includes marbles and a variety of accessories for limitless creativity
spatial awareness
GraviTrax Expansion Track: Enhance Your Marble Run Adventure 1-Person 48-Inch Towable “This shirt truly feels greatElevate Your Experience with the GraviTrax Expansion Track Transform your marble run adventures with the GraviTrax Expansion Track designed to enhance your existing setup. This exciting expansion provides over 40 additional elements that allow for inventive designs and endless fun. Kids and adults alike will enjoy experimenting with new heights, twists, and pathways, all while developing crucial STEM skills through play. Imagine the thrill as your