Open Box (never used), Never used - just opened the box and closed it again. Everything in the box is intact and untouched. Automate your marble run and send those spheres racing via radio signal and remote control with the “GraviTrax POWER Launch Starter-Set”! Set Included 123 pieces for longer play time Now you can control the marble by programming the electronic elements, that communicate through invisible connections created by players controller. The GraviTrax interactive track system allows you to design and build your own race tracks and experiment with gravity, magnetism, kinetics and now POWER your marbles to the finish. Boys and girls ages 8 and up can experience educational and science play- over 15 million sold worldwide. All sets are compatible with GraviTrax, and GraviTrax PRO. GraviTrax is an a ideal holiday and birthday gift for creative, curious kids who love to build.. Make an offer!;