Add the dimension of sound to your Quadrilla runs with a xylophone rail that plays a musical scale as marbles race over it.
* Marble-run construction toy made with durable wood and non-toxic, water-based paints
* Includes 2 distributor blocks, 2 stabilizer rings, 8 marbles, and one xylophone rail.
* Xylophone rail plays as marbles run down
* German-engineered design inspired by Da Vinci Circle
* Helps to develop spatial thinking and an understanding of Science, Technology, Engineering, Art and Mathematics (STEAM) principles
* Praised by The Wall Street Journal as the perfect toy for teaching children how to code
* Compatible with all Hape Quadrilla sets
* For ages 4+