| 15.50 EUR | (19.38 EUR incl. vat) |
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Delivery - immediate
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An educational aid for teaching and an intelligence enhancer on a desk.
The five steel spheres are suspended from the cords. Lift a sphere, allow it to swing and knock against the next sphere. Thanks to an elastic shock in combination with retention of momentum and energy, only the furthest sphere will be knocked away.
What happens if you release two spheres?
Dimensions: 111x105x140 mm.
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