- Reliable quality: Precision-made metal axles in a smooth-edged ABS housing provide a durable STEM toy for project-based learning with an optimal safety profile for everyday school use. - Easy assembly: Supports independent construction with an intuitive plug system; modular design promotes practical learning and spatial thinking; ideal for developing manual skills. - Practical magnet-field experiments: A hand-operated mini-generator realistically demonstrates the conversion of muscle power into electrical energy and shows how magnetic field strength relates to current. - Broad application: Efficient power generation for educational projects and small lighting tasks; simple manual operation offers immediate feedback for eco-energy experiments in classrooms, laboratories, or portable setups. - Use scenarios: • In-class project work to prototype energy generation and learn mechanical to electrical conversion • Science fairs or maker-space activities to build practical skills and teamwork • Eco-energy demonstrations with portable lighting in classrooms, labs, or outdoor settings