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X-Ball

30 X-pieces and a booklet – hidden in a small box (right). 30 X form an icosidodecahedron – Leonardo Da Vinci’s favorite polyhedron, which has 30 vertices and consists of 12 pentagons and 20 triangles. Designer and inventor – Roger von Oech – is a well-known specialist in the field of creative thinking 🙂

X-Ball
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X-Ball – Manual Page

I shall say that the booklet, although black and white, is actually and thorough. There are 96 small pages. It tells in detail about what you can build from these X-shaped parts and why, about compatibility with Y-ball and Ball of Whacks, and a lot of useful (more for adults, of course) information.

X-Ball - Manual Page