School and university students can learn about hydraulic content with this realistic fischertechnik PROFI Hydraulic Model Construction Set and Educational Toy. The learning set offers hands-on technology for learning about the transfer of force using liquids. Five different models illustrate how signals and forces can be transferred with liquid media. Students can build a simple functional demonstration model, an excavator, and three other models. Combined with the accompanying pedagogical materials, the construction set teaches extensive skills and expertise on the topic of hydraulics. These accompanying materials are provided free of charge on the eLearning Portal to support teachers in preparing for and designing their curricula.