Are you still worried that your child is in physics? If so, our electric motor model kit is carefully prepared for you. It allows students to do physics experiments more intuitively and understand the working principle of electric ground. Features - Color: Black. - Material: Plastic. - Size: Approx. 14.00X11.00X8.70cm/5.50X4.32X3.42in. - It can be used to verify the relationship between the armature steering and the direction of the current and the direction of the field lines. - With it, you can easily let your students or grasp the principle of rotation of the motor. - It is a good helper for teachers, parents, train teachers, professors, researchers, etc. - The is simple, assembling according to the drawing. Connect the assembled and adjusted motor to the power source. - Let cultivate interest in learning and improve grades through practical exercises. Package list: 3 x Set of Electric Motor Model