Marble Genius Marble Run Booster Set - 20 Pieces Total (Marbles Not Included), Construction Building Blocks Toys for Ages 3 and Above, with Instruction App Access, Add-On Set, Primary

This 20-piece expansion set is designed to enhance existing Marble Genius marble runs with a variety of new track components. It features a large, stable base to support taller structures and ten transparent action pieces that allow children to track the marbles' progress visually. Designed for builders aged three and up, the set encourages early STEM development through hands-on engineering and creative play. While marbles are not included in this specific pack, it is fully compatible with all other Marble Genius products. The set also provides access to a free instruction app that offers guided builds and interactive challenges. It serves as an ideal entry-point or add-on for developing critical thinking and problem-solving skills in young children.