The open-ended type encourages creativity and problem-solving as students experiment with different configurations. This is an excellent addition to any science , offering practical application of theoretical knowledge in a controlled environment Features -Color:Light Green -Material:Motor, plastic -Size:6.00X5.00X3.50cm/2.36X1.97X1.38in - Operating voltage: 4.5V -Engaging: the open structure of the motor model makes it easy for students to observe and participate in motor experiments -Practical: catering to the experimental needs of high school physics classroom -Hands-on activities: helping students understand the principles and functions of electric motors through hands-on activities -Science: ideal for use in classroom, providing a practical way to learning physics concepts -Extensive: supporting students in developing their experimental skills Package list: 4 x electric motor model