Features: This Electric Motor Set is designed to teach the working principles of a permanent magnet D C motor and transform it into a D C electric motor. Featuring metal and plastic construction, this electromagnetic experiment tool ensures long lasting stability and easy assembly without tools, perfect for frequent educational use. Designed for middle and school teachers and students, this D C motor model simplifies complex concepts through user friendly operations, enhancing understanding in physics classrooms. Ideal for diverse settings like science fairs, classroom demonstrations, and extracurricular activities, this physics experiment set sparks curiosity and interactive learning in electromagnetic principles. With smooth, burr frees edges and versatile applications, it offer a safe, engaging way to explore electromagnetism, fostering practical skills in educational environments. Specifications: Materials: Metal, Plastic Color: As The Picture Shows Package Weight: approx.200g Styles: (Optional) 2 Styles are Available as Shown in the Picture. Size: Mixed Package Includes: 1 Set of Electric Motor note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!