The 3D model has fine workmanship and is vivid and lifelike. It can visually display the sun, the earth, and the moon's motion trajectories, and explain the principles of astronomical phenomena. Students will be more interested in classroom teaching. With live demonstrations, students will further their understanding of how the sun, earth, and moon move. Features - Color: Black - Material: Plastic - Size: About 41.50 x 28.00 cm / 16.31 x 11.00 inches - Astronomical model: The model includes the sun, the earth, the moon, disk, the moon phase disk, the operating handle, the indicating arrow, etc. - Showing planetary orbits: The cool model simulations show of the sun, earth, and moon in nature. - Science and education prop: Suitable for teachers to explain in the classroom and show astronomical knowledge more vividly. - Early education toy: Let children have a deeper understanding of astronomical knowledge and learn science knowledge in games. - Easy to operate: A joystick is attached to the center tube to activate to rotate the rotary assembly for demonstration purposes. Package list: 1 x Sun Earth Moon Orbital Model