Wooden ball track set for beginners.This starter set is a basic entry into the world of wooden marble runs. Nothing challenges a child's building and engineering skills more than a well-made marble run. When built well nothing can be more fun! Made in Germany. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs. WARNING: CHOKING HAZARD—This toy is a marble. Not for children under 3 yrs. WARNING: CHOKING HAZARD—This toy is a marble. Not for children under 3 yrs.