GRAVITRAX PRO: STARTER SET

Kids experiment with walls, pillars, and balconies that they can attach together to form 3D marble run race tracks. This set features 153 elements to help kids build their vertical, action-packed track systems. Kids experiment with walls, pillars, and balconies that they can attach together to form 3D marble run race tracks. This set features 153 elements to help kids build their vertical, action-packed track systems.