The Xyloba Marble Run from the Weizenkorn Corporation (Made in Swiss) is a great educational toy for kids. Children can compose different melodies by assembling the many different building blocks and xylophone tones based on their fantasy. There are many different ways to assemble the toy and kids will spend many hours to compose well-sounding melodies they can play to their parents, grand-parents, and friends. The marble run includes various tones based on the model type. The Xyloba Marble Run is a very high quality product “Made in Swiss”.