Very important educational principle: the children learn with this Becherlupe to observe animals without undue cruelty. After the study, the animals can be released outside the apartment. They are not pressed, squeezed or otherwise damaged.
Especially handy for children: the line pattern on the floor. This helps to assess how much larger the Krabbeltier is shown. The magnifier is small enough to make them easy to take along on the next trip.