Polyhedron for use in e.g. educational areas, has bag that is opened at one side, including partial transparent outer surfaces and provided at polygon surface for inserting upper surface units

摘要

The polyhedron has a bag that is opened at one side and including partial transparent outer surfaces, where bag is provided at a polygon surface for inserting upper surface units. A casing is provided and consists of plastic (1), where a transparent outer surface is attached to the casing. A device is provided for removably holding the upper surface units and attached at the polygon surface.