GraviTrax marble runs – starter sets and expansions

Set the marbles in motion and spark imagination—GraviTrax turns gravity, magnetism, and kinetic energy into fun and creative science. This modular marble run and construction system lets you design 2D and 3D tracks, develop logic, spatial thinking, and planning skills, and experiment with physics. Starter sets include everything needed for your first build, and thanks to standardized pieces the entire system is easy to expand and ideal for STEM learning.

GraviTrax expansions (e.g., Pro, Vertical, Loops, Bridges) add switches, bridges, loops, a catapult, a hammer, and a magnetic cannon for endless combinations, higher speeds, and spectacular tricks. All parts are mutually compatible, allowing you to build grand 3D marble runs with carefully managed marble flow, track switching, and precise jumps.

Choose a starter set to begin, add your favorite expansions, and explore GraviTrax Pro for advanced vertical builds; for younger builders, GraviTrax Junior with larger pieces is available. Thanks to quality workmanship and sturdy components, building is stable, engaging, and consistently creative. GraviTrax is a marble run and building set for kids and adults; most sets are recommended from age 8 and make a great gift for lovers of physics and smart toys.