Description: 【Ergonomic Design】: Crafted from pp material, this Hand Crank Electric Generator Kit features non slip grip, making it ideal for intensive classroom activities and study group. Its sturdy design ensures great usability in everyday educational settings 【Modular Learning Enhancement】: The generator's modular components enhance spatial intelligence, supporting the development of systematic skills during experimental learning and creative DIY projects. It's suitable for fostering hands on understanding of scientific concepts 【Interactive Energy Demonstration】: By manually cranking the device, students can visually experience magnetic field operations and energy conversion processes, promoting practical comprehension of electromechanical principles in an engaging manner 【Convenient】: Its convenient design maximizes space utilization while offering a cohesive learning experience that bridges educational settings with personal exploration 【Inspiring Scientific Exploration】: Designed to ignite students' passion for science, this compact generator seamlessly integrates classroom demonstrations with at home experiments Specification: Material: PP   Size Chart: 8 cm/3.15 inch Package Includes: 1 Set Hand Crank Electric Generator Kit Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.