The Eisco Labs 92 Atom Molecular Model Set provides a comprehensive set of durable plastic atom parts and link connectors for assembling a wide variety of organic and inorganic molecular models. Atoms range from 30mm to 50mm in diameter and ship in an 11-compartment plastic storage case for organized retrieval and tidy storage between class sessions. Set contents — Atoms: Hydrogen (white, 1 face, 30mm) x36; Carbon 4-face x18, 3-face x8, 2-face x2 (black, 38mm); Nitrogen 4-face x2, 3-face x6, 1-face x1 (blue, 38mm); Oxygen 2-face x8, 1-face x2 (red, 38mm); Fluorine 1-face x1 (light blue, 38mm); Chlorine 1-face x6 (green, 50mm); Bromine 1-face x1 (dark brown, 50mm); Iodine 1-face x1 (pink, 50mm). Links: 40 medium (50mm), 64 long (65mm), 4 flexible (65mm), 6 turning (70mm), 120 small (16mm), and 1 link removal tool.