Geometric volume

What is a tetrahedron? ...and which volume has a cube? Questions like these can be explained by the geometric volume. The different bodies are open to experiment on one side. Thus, for example, the different volumes can be compared with liquids.

Material: Polyacryl.
Dimensions large cubes: 10 x 10 x 10 cm.
From 4 years.

Attention! Not suitable for children under 36 months suffocation by small parts!