This molecular assembly kit reproduces textbook CO2 crystal arrangements with clear, classroomready components. It helps students and instructors visualize molecular connections and practice building consistent structures. Key features and benefits Accurate model components: 28 skyblue oxygen atoms and 14 black carbon atoms match classroom diagrams for straightforward comparison with textbooks. Durable construction: gloss, sturdy plastic atoms hold up to frequent classroom use while maintaining precise hole alignment for smooth, reliable assembly. Versatile linking options: 60 metal rods in three lengths 130 mm, 90 mm, and 25 mm support multiple configurations and teach spatial relationships between atoms. Clear demonstration of bonding: Rods and atom nodes simplify the representation of single covalent links in carbon dioxide, making abstract bonding concepts tangible. Ready for repeated use: Materials and manufacturing precision reduce setup time and keep activity flow efficient during lab sessions. Function, compatibility, size, material, performance Function: Handson teaching and visualization tool for molecular structure, bonding practice, and model building exercises. Compatibility: Designed for school and college chemistry curricula and lab activities. Components are sized for tabletop demonstration and student handling. Size: Rods available in 130 mm, 90 mm, and 25 mm allow scalable models from full assemblies to detail studies. Material: Atom pieces are gloss, sturdy plastic; connectors are metal rods for stable joins. Performance: Accurate hole alignment and consistent component tolerances minimize misfits and speed assembly. Practical use scenarios Instructor demonstration: Build a full CO2 crystal arrangement during lecture to illustrate molecular geometry and bond connections. Lab activity: Small student groups assemble models to compare textbook diagrams with physical structures and practice measurement and observation skills. Exam review or study session: Use models for quick, handson review of bonding concepts and spatial relationships before assessments. This kit focuses on clarity, durability, and educational value to make molecular structure lessons more effective and easier to teach.