Add some vertical challenge and take your marvelous marble run to new heights with the “GraviTrax Building Expansion” set! With over 25 additional components and endless possibilities to design a different track every time you play, experiment with combinations of height tiles, base plates, freefalls, switches and extra level. A cool addition to any “GraviTrax Starter-Set” — boost your building skills and race your marbles to the finish! Experience the power of gravity and educational fun today!

What makes a great toy? GraviTrax checks all the boxes! It’s a creative, modular, expandable track system that challenges children to use their imagination to build their own marble runs! Electronic-free, GraviTrax construction sets use STEM-friendly concepts while building critical thinking and problem-solving skills. Each set is open-ended with boredom-busting play options for hours of fascinating fun. Master the basics then simply add expansion sets and accessories to propel those metal marbles around the tricked-out track of your dreams!

Comes with 2 base plates, 1 transparent level, 8 large height tiles, 4 small height tiles, 2 switches, 1 3-in-1 tile, 1 vortex, 1 finish line, 4 basic tiles and inserts (2 catchers, 1 freefall, 1 splash, 1 landing).

Lasting durability for girls and boys ages 8 and up, it’s the learning toy children (and savvy adults) return to over and over again!