With 41 colorful pieces, the Hubelino marble run catapult expansion set offers an exciting addition to existing marble runs. The set contains two functional catapults and two reflectors that can be used to launch marbles through the air. The package is rounded off by various track elements and white building blocks. Made in Germany, this set is compatible with other common building systems. It playfully promotes an understanding of physics, fine motor skills, and logical thinking when constructing new, creative track layouts.