With the help of the Roberval balance
... kids are made familiar with the lever principle. The horizontal axis will only be balanced when equal weights have been laid in each of the two scale-pans. Contents: scales as well as 12 red and blue sorting bears each, weighing 3 g, 6 g, 9 g and 12 g.
Material: synthetic material
Measurements: 38 x 13 x 12 cm
Age restriction: 3 years
WARNING: Not suitable for children under 36 months due to small parts which may be swallowed, choking hazard!
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