Organic and inorganic chemistry peg pack, A selection of pegs for building inorganic and organic compounds. Contains 72 pegs (24 radial, 12 polar and 36 tetrahedral)
Organic Chemistry Model Set, Build thousands of organic molecules in their natural conformations and see the 3-D structure of the molecules, With 140 durable components in this model set, you can build bigger molecules without having to reuse model parts, Snap-closure
Organic Plus Model Set, Has all of the great features of the MG140 model set PLUS it has 3 new features, Has 35 additional parts that can be used to illustrate sigma and pi bonding, resonance, and aromaticity, Perfect for the more advanced orgainic chemistry student