Features MAIN OBJECTIVE: Chemistry molecular model kit, used to construct a crystalline structure model of CO2 as elementary substances in textbooks. APPLICABLE SCENES: The crystal structure model kit can be used as a popular scientific aid, chemistry class teaching, to stimulate interest in research and learning. PLASTIC MATERIAL: These atomic models are made of excellent plastic, with good durability and texture, high gloss, bending strength and long service life. Bond Specification Includes 3 specifications of single bond metal rods to connect oxygen atoms and carbon atoms, easy to install and remove. ATOM SPECIFICATION: Includes 28 sky blue oxygen atoms and 14 black carbon atoms, with holes and standard sizes, making it easy to use and learn. Specification: Item Type: Chemistry Molecular Model Kit Material: plastic. Oxygen atom specification: 1 hole, color: sky blue, quantity: 28 pieces Carbon atom specification: 6 holes, color: black, quantity: 14 pieces Single link specifications: 8 x 130mm metal rods, 24 x 90mm metal rods, 28 x 25mm metal rods Product Usage: This model is mainly used to build a model of crystal structure of CO2 as elemental substances in textbooks Package list: 1 x Chemistry Molecular Model Kit Package List 1 x Chemistry Molecular Model Kit