For studying nomenclature, homology, and isomerism.

Atoms are represented by colored balls, drilled to receive connecting bonds. Linkages are represented by slotted wooden dowels. Multiple bonds, ring structure linkage, flexible bonds, and unsaturated linkages are represented by plated helical springs.

Approximate atom center diameters, 29 to 32 mm. This set contains 10 carbon (black), 2 nitrogen (blue), 28 hydrogen (yellow), 6 oxygen (red), 4 chlorine (green), 2 sodium (orange), and 2 potassium (purple). Replacement parts are available.