This set comprises 255 atom centres, scale 3cm = 100pm. The centres are colour coded according to the element and the bond angles are marked. Bonds between atoms are made from plastic straws, which can be cut to any required length.

The items consist of: Amino acids, monosaccharides, glycerol, fatty acids, steroids, purines and pyrimidines, peptides, disaccharides, lipids, nucleosides, nucleotides, proteins, polysaccharides, nucleic acids.