Description This hand-crank generator is an ideal tool for students to explore the principles of electromagnetism and electricity. Its compact design makes it easy to handle, while the transparent casing allows users to observe the internal mechanisms. ideal for classroom demonstrations, it helps students understand the conversion of mechanical energy into electrical energy. Features -Color:Yellow -Material:Plastic -Size:7.60X6.40X4.50cm/2.99X2.52X1.77in-Simple to use: generate electricity effortlessly by manually cranking, no external power source required.-Educational tool: ideal for physics and electromagnetism experiments, helping students understand the principles of electricity generation.-Diy science: engage in diy creation, fostering students' practical skills and creativity.-Compact and portable: small and lightweight, easy to carry, allowing experiments to be conducted anywhere.-Science education aid: ideal for science education, enhancing students' interest in science and improving learning outcomesPackage list: 1pcs x Hand-crank generator