Let your little engineer's creativity take a wild ride with the Hape Quadrilla Wooden Marble Run Construction: Super Spiral - Ages 4 . This deluxe 101-piece set offers endless possibilities for creative construction, featuring a unique xylophone rail that plays musical notes as marbles race over it, enhancing sensory play. With two double-sided spiral twists and four special control blocks, this set not only entertains but educates, promoting problem-solving skills, spatial reasoning, and teamwork. Perfect for family bonding, this set ensures quality playtime that is both fun and educational.

The Hape Quadrilla Wooden Marble Run Construction: Super Spiral - Ages 4 features:
- A musical xylophone rail that adds a delightful sound element to marble runs.
- Two double-sided spiral twists for exciting marble spins.
- Four control blocks to change the direction of marbles, adding an element of surprise.
- Compatible with other Hape Quadrilla sets for expanded building options.
- Made with high-quality, non-toxic materials for safe and durable play.