Sun-earth-moon model can demonstrate and rotation of the Earth, of the moon, the change of day and night in the same place, the change of day and night at the same time and so on. Make a big difference to your kids. Let students learn astronomy knowledge by operating this model. Features - Color: Random Ball color. - Material: Plastic. - Size: 20.00X12.00X7.00cm/7.86X4.72X2.75in. - This sun-earth-moon model makes your kids or students practice their operational ability while they are thinking. - Contribute to children's curiosity on the solar system so that improving their geography grades. - The model truly presents the running orbit of the sun, the earth, and the moon in the natural world. - Bring real and objective experience for children to know more knowledge about astronomy. - With solar terms, this product can make you know more ancient Chinese research results about the relationship between the sun and the moon, the earth. Package list: 1 x Sun Earth Moon Orbital Model