Experience cool marble run adventures with this Wonderworld Marble Run School Box. The school box consists of 255 marble run parts to create endless different marble runs. The parts have a child-friendly design, cheerful colors and are made of sturdy wood. By playing with marble runs, children learn to understand concepts such as distance, speed, force, gravity, friction and energy. After use, the parts can be stored in the supplied large plastic box. Including a syllabus and exercise sheets. Suitable from 36 months.