All contents of the IMAGINARY discovery box are available under a non-commercial open-source license.  This means digital contents can be downloaded for free and printed or produced for your own use. The discovery box is sold at production cost only, which is additionally kept low through partnerships and sponsors. In efforts to be transparent, here is a pdf with a list of contents and costs (in German), with possible changes reserved in the future. 

• Overview on costs and contents of the Entdeckerbox (pdf)