This organic chemistry molecular model kit includes 50 color-coded plastic atom parts and 90 links. All pieces fit inside of a convenient portable storage box. Using this set, teachers and students can build molecular models for aliphatic and aromatic hydrocarbons, alcohols, aldehydes, ketones, carboxylic acids, esters, ethers, amines, amides, halogen compounds, sugars, fats, amino acids, alkaloids and representative of most other families of organic compounds. This set will bring to life such concepts as stereoisomerism and conformational analysis, and help you relate the physical and chemical properties of compounds to their molecular structures. The pieces are durable and designed for years of use.