The material is and fine workmanship. The Solar System Model can visually display the astronomical the sun, the earth and the moon. Students will be more interested in classroom teaching. Students are more likely to understand the movements of the sun, earth, and moon over time. Features -Color:Multi -Material:Wood -Size:18.00X10.00X10.00cm/7.07X3.93X3.93in - This Solar System Model is a great way to illustrate the rotation of the Earth, the rotation of the planets around the sun, the the year and of the moon. - This device can explain to young children that the earth rotates on its , that the moon circles the earth every , and the earth circles the sun every year. - You can learn the solar terms and farming time used by Chinese farmers, very simple. - Cultivate children's hands-on ability and stimulate their interest in learning. Cultivate children's interest in learning and curiosity. - Let children develop their interest in learning through practical and improve their academic performance in geography. Package list: 1 x set of Solar System Models