Expand your Marble Track with the GraviTrax – Expansion Building Set! Expand the possibilities! This kit helps extend your run by combining additional base plates and other construction elements with your Gravitrax® Starter-Set (sold separately). You’ll be able to increase the possible combinations and construct even more complex systems. How many detours can you build in before the finish? The GraviTrax® Marble Track System is an educational toy that aids in the learning of science, technology, engineering and mathematics, or ‘STEM‘. Contents: 2 base plates, 1 transparent level, 8 large height tiles, 4 small height tiles, 2 switches, 1 x 3-in-1 tile, 1 vortex, 1 finish line, 4 basic tiles, inserts for basic tiles: 2 catchers, 1 freefall, 1 splash, 1 landing Please Note: This Expansion Pack requires the GraviTrax® Starter Set (sold separately & subject to availability). Suitable for ages 8 to 99 years
