Gravitrax - Expansion Transfer
With the GraviTrax interactive track system, you can design and build your own marble runs and experiment with gravity, magnetism, and kinetics to propel your marble to the finish. With a variety of tiles, levels, tracks and elements, you can control the speed of the marble.
Recommended Ages 8 and up
Contents: 3x Transfer Bases, 1x Long Rail, 2x Medium Rails, 3x Short Rails & Instructions