Premium Material---The molecular model set is made of durable, safe, and non-toxic materials that are wear-resistant and not easily damaged. The product is built to last for many years. You can be confident in its durability, with a high-gloss finish and excellent texture. Product Feature---This organic chemistry model helps chemistry learners understand three-dimensional molecular structures in the microscopic world. It is an essential tool for children and students interested in learning chemistry. Precise Chemistry Model---This sophisticated model includes a complete set for conducting experiments. For teachers and parents, it makes teaching complex molecular structures easier than relying solely on textbook images. Powerful Function---This model includes atoms such as carbon, hydrogen, oxygen, nitrogen, bromine, and other common elements, along with various single, double, and long bonds. It supports building most organic and inorganic molecular structures used in high school and university chemistry studies. Electron Orbital Model Kits---Our product includes additional electron orbital models for advanced chemistry education. This enhances hands-on learning and understanding of molecular bonding, making it an essential tool for students and children. Material: ABS Color: As shown Package Contents: 86 x Atom Models 153 x Links 1 x Linking Tool 1 x Plastic Storage Box Note: Only the items listed above are included. Other accessories or products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.