These constant width solids behave like spheres. This is possible because, independent of their peculiar shape, its diameter remains the same at any point. This can be demonstrated by positioning a flat object, such as a hardcover book, on top of the solid where it will then roll as if placed on a sphere. Furthermore, these wonky shapes don’t roll away.
The shape is based upon a revolution of the Reuleaux triangle.
The attached booklet describes some of its applications, such as the Wankel engine that uses a rotary design or the drill bit that makes square holes.
Sold in sets of 3 pieces.
Contents: 3 solids instruction booklet
Box: cardboard box 16 × 6 × 4,5 cm
Weight: 100 g
Retail price: € 24,90