The Molymod organic set can be used to make quality colour-coded 3D models any number of simple molecules can be made from this teacher kit. Designed for those needing to make many models such as teachers and lecturers.The atom parts are made of solid plastic spheres and are available with from 1 - 6 holes in the usual angular orientations.The contents are contained within a compact sturdy plastic storage box.The contents of the Molymod organic teacher set include;Atoms:24 carbon atoms (black 4 hole tetrahedral)6 carbon atoms (black 5 hole trigonal bipyramidal)2 carbon atoms (black 2 hole linear)6 carbon atoms (black 3 hole trigonal)12 oxygen atoms (red 2 hole angular)40 hydrogen atoms (white 1 hole)4 nitrogen atoms (blue 4 hole tetrahedral)1 sulphur atom (yellow 4 holes tetrahedral)1 sulphur atom (yellow 2 holes angular)4 phosphorus atoms (purple 4 hole tetrahedral)8 halogen atoms (green 1 hole)2 metal atoms (grey 1 hole)1 metal atom (grey 2 holes angular)Bonds:55 medium links (grey single bonds)25 long flexible links (grey double/triple bonds)60 short links (white all bond types)6 pink unhybridized p-lobes 6 purple unhybridized p-lobes and 6 lone pair of electrons lobes.Tool:1 tool (used for disassembling models containing short link bonds)