152 Atom ? parts and 160 links. This set contents sufficient parts to make the 7 models shown in adjacent photograph, or variations using the sane ligands. The complete collection of models makes an instructive display. Contents : 9 Metal (7 octa, 2 tetra), 28 Carbon (18 tetra, 10 tribipyr), 24 Nitrogen (18 tetra, 6 mono), 10 Oxygen) (6 tetra, 4 ang), 6 Halogen mono: 75 Hydrogen (Molydome). Links : 160 links (75 short white, 85 NV ? links), 1 short link remover tool.