Gravitrax PRO Accessory: Helix
Top level has 6 openings for the marbles to enter
• Lower level has 6 exit points for the the marbles to roll out of
• Compatible with all GraviTrax products
Any GraviTrax Starter-Set required
Top level has 6 openings for the marbles to enter
• Lower level has 6 exit points for the the marbles to roll out of
• Compatible with all GraviTrax products
Any GraviTrax Starter-Set required