Three constant-width solids, which behave like spheres. Made from solid wood.
Each solid is an orbiform based on the revolution of a Reuleaux triangle. Our eyes struggle to believe it, but the diameter of each shape is always the same at every point, allowing to to act exactly like a sphere.
You can demonstrate this property by placing a flat object, such as a book, on them, and it will roll smoothly as if the object were on spheres. In addition, these wobbly shapes will not roll away.
In Italian Language.
Not suitable for children under 3 years.
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