Each pack contains 12 flat pink and purple orbitals to represent p-orbitals (6 pink, 6 purple). Each fits directly into an appropriate hole on atoms. You might use these, for instance, to represent a p-orbital using two holes in a five hole carbon atom (available separately). Use the pink and purple parts to represent wave function phases. This back contains parts to represent the six p-orbitals in a benzene ring.
The Molymod system is the original, unique, dual-scale system of high quality low-cost molecular models. These enormously popular sets are used by students and scientists all over the world.
This pack of 10 blue atoms are used typically to represent nitrogen atoms and is for extending your existing set or for replacing lost atoms.