Attention little fans of rolling balls and tracks! The building elements of this Junior marble run are easy to assemble, and soon the extra-large balls are rolling across the construction site. This is particularly enjoyable for beginners in motor skills during their imaginative play. Exciting construction elements playfully convey the principle of cause and effect. It's a fun, expandable, and combinable marble experience with learning and "aha" effects. With this marble run, even small children can playfully explore cause-and-effect principles, and their perception of rolling objects is enhanced. The easy-to-handle design ensures that children are not overwhelmed while playing, and the extra-large balls provide an added sense of safety and fun. The various components of the playset are easy for small hands to grasp and assemble. The well-known wooden train connection principle offers a multitude of construction possibilities, encouraging experimentation and imaginative play. Compatible and combinable with the Junior marble run playground, it creates vibrant play worlds that leave no room for boredom. Older children can also roll cars or marbles on the wooden tracks.