Take marble run fun to new heights with the GraviTrax PRO Starter Set. With 149 pieces, kids can build exciting vertical track systems using walls, pillars, balconies and more. This hands-on STEM set is perfect for curious builders who love experimenting, problem-solving and creating their own designs. It encourages kids to explore gravity, magnetism and kinetic energy while having fun. Key Features GraviTrax PRO Starter Set with 149 building elements Build vertical marble run tracks with 3D structures Includes walls, pillars and balconies for creative track designs Balconies help suspend tracks in the air for extra action Compatible with existing GraviTrax sets for expanded play Encourages STEM learning through gravity, magnetism and kinetic energy Includes tasks and blueprints to help kids get started Great for problem-solving, creativity and hands-on building fun Suitable For Ages 8+
