Crimp beads are tiny metal beads meant to be smashed down to hold something in place. They come in numerous sizes, depending on the material used. They are best attaching clasps to beading wire (acculon, soft flex, etc.) To use them, string your beading wire through the crimp bead then through the clasp opening. Then bring it back through the crimp bead so that it is fed through the crimp bead a total of two times. String the beading wire back through the last few beads strung. Take a flat plier (chain nose works best) and apply firm pressure to the crimp bead. It will flatten, holding the wire and clasp in place.