Gravitrax Starter SetThis GraviTrax Starter Kit is an easy way to get started with the GraviTrax system. There are over 100 components included which can be assembled however you like to create a continuous track for your ball to roll through. The Starter Kit can be used over and over again, plus you can expand your experience by purchasing add on items separately. This kit can be used at home or school as a fun educational tool. The kit supports STEM learning and will