The sun-earth-moon model can demonstrate the rotation of the earth, of the moon, the changes of day and night at the same place, and the changes of day and night at the same time. Make a big difference to your child. Let students learn astronomical knowledge by operating this Solar System Model. Features -Color:Khaki -Material:ABS, foam, metal -Size:12.00X12.00X10.00cm/4.72X4.72X3.93in -Note: Not included battery -Note: this is diy solar system model, need to be assembled by yourself. - This sun-earth-moon model allows your child or student to practice their manipulative abilities while thinking. - Contributes to children's curiosity about how the solar system works, thereby improving their geography grades. - The Solar System Model truly presents orbit of the sun, the earth, and the moon in nature. - Bring a real and objective experience for children to learn more about astronomy. - Through solar terms, this product allows you to learn more about the research results of the relationship between the sun, the moon and the earth in ancient China. Package list: 1 x Set of Solar System Model