The blocks can be used for arithmetic: the single blocks are 1 cm high, the two blocks 2 cm, etc. up to ten with 10 cm. This allows the children to compare the size of the numbers. The colours complement each other with the other articles from Grimm's.
33 parts on a base with wooden dowels with How to play.
Wood: colored lime wood, base and dowels oiled.

Dimensions: length from the base 26cm, height dowel 13cm, individual blocks height 1-10cm.