Features: High quality plastic material, specially designed for scientific experiments.Understand the earth, the moon, the sun movement rules. An intuitive teaching model that can vividly depict the relative movement between the earth, the moon, and the sun.Cultivate your child's hands-on ability and stimulate interest in learning.Cultivating children's interest in learning and desire for knowledge.Improve children's sense of innovation and ability, strengthen the cultivation of practical ability.Specification:Item Type: Teaching Model ToolMaterials: PlasticColor: As the Picture ShowsAge: over 14Size: Approx. 8*8*20cm / 3.1*3.1*7.9inchWeight: Approx. 47gPackage list:1 x Teaching Model Tool.NotePlease note that the color of the balls of this product will be sent randomly, and make sure you will not mind before ordering.