Description: MaterialThe DIY material pack is made of great wood, sturdy and durable.DesignThe rotating moon model is carefully crafted from a variety of components, allowing children to make their own works based on different materials.Easy to assembleThe estimated assembly time is 0 to 18 minutes, easy to operate, adults and children can assemble and play, it is a good interactive game.EducationChildren's science and technology teaching material package is not only a fun activity, but also improves problem solving skills, spatial reasoning skills, and fine motor skills.GiftScience crafts are the first choice for childrens birthday gifts, party gifts and other people in need. Specification: Material: Wood Size Chart: After assembly: 20cmx19cmx18cm/7.87inchx7.48inchx7.09inch Package Includes: 1 Set DIY Rotating Moon Material Pack Note: 1.This is not an infant toy, please take it away from children to avoid eating.2.Please allow slight errors due to manual measurement and different monitors.