Feature: 1. BIOLOGICAL SCIENCE POPULARIZATION TEACHING AIDS: Can be used as teaching tools in biology classrooms and as enlightening tools for genetics, exploring the molecular world and stimulating scientific research interest. 2. EASY TO INSTALL AND DISASSEMBLE: Atoms and chemical bonds are tightly combined, and can be easily disassembled by disconnecting tools. 3. PLASTIC MATERIAL: Plastic atoms have good durability, high glossiness, and good texture. The connecting adhesive has perfect durability and perfect bending performance. 4. SCIENTIFIC DESIGN: Each atomic color adopts a universal standard, making it easier for you to use and learn. 5. APPLICABLE SCENES: This model set is very suitable for schools, teachers, students, for education, for showcase. Specification: Item Type: Molecular Crystal Structure Model Material: Plastic Application: This model is used for demonstrating the teaching content related to crystal structure in high school and chemical physics. It can enhance students' spatial concepts and facilitate understanding the close relationship between crystal structure and metal isotropy . Package List: 60 x Carbon C60 30 x Diamond 39 x Graphite 95 x Short Bond90 x Medium Long Bond14 x Long Bond1 x Storage Box