The work with this material is proposed in primary school classes. The material consists of 5 rectangular wooden prisms (20 x 10 x 2 cm) painted yellow with lines and squares printed on the surface. The prisms are contained in a wooden box with a lid.
This product is not a toy, but a learning material intended for use under adult supervision. We, therefore, declare that our products are not subject to the obligation of CE certification, but nevertheless, comply with the most recent essential requirements of the standard in force.