In the activity students build protein bracelets using beads with different colors and shapes that represent the different amino acids. Table I in the activity sheet identifies the different beads. I buy the beads at a bead shop. You may need to modify Table I in order to match the beads you have. You can email me if you need the Word document for this. One can also order the beads online. In terms of string, I use the stretchy string to make them. This can also be purchased at a bead shop. Make sure you buy enough beads and stretch string so each student can make at least one bracelet.