Description: 【Educational DIY Kit】: This electric generator model is a fantastic hands-on project for children, designed to enhance their understanding of scientific principles and physical mechanics through interactive learning. Requires two AA batteries (not included) 【Quality Materials】: Constructed from sturdy PP and metal components, this kit ensures longevity and repeated use, making it a reliable educational tool for young scientists 【Compact Design】: With dimensions of 9cmx7.5cmx5cm, this model is perfectly sized for small hands, allowing children to easily assemble and exploring the workings of an electric generator 【STEM Learning Tool】: Ideal for science experiments and classroom demonstrations, this kit encourages curiosity in STEM (Science, Technology, Engineering, Mathematics) fields by providing practical insights into electricity generation 【Fun & Engaging Activity】: Suitable for school projects or at home exploration, this DIY assembly kit offers an engaging way to develop problem-solving skills while having fun with technology-based creations   Size Chart: 9cmx7.5cmx5cm/3.54inchx2.95inchx1.97inch Package Includes: 1x Electric Motor Model Note: 1.This is not infant toy , please take away from children to avoid eating. 2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.