- musical ball track blocks
- bring melody and sound to your marble runs!
- supports schema and small-world play
HABA melodious building blocks is a supplementary set of wooden blocks with sound, to use with any of your existing HABA wooden ball tracks. Six colourful blocks form a pentatonic scale as your marbles roll down them, bringing a unique and delightful sound to your track races and games. Set also includes track and six marbles.