Do You Like Your Molecules Regular or Extra Carbon?

You can build hundreds of molecular models in different colors and configurations. The durable model parts also include four sizes and two colors of flexi bonds, as well as numerous rigid bonds. The bucket contains 874 atoms, 579 bonds, two beads, and 25 instruction booklets with directions on how to make hundreds of different molecular models. Eleven of the instruction booklets also include lab exercises and copymasters.