they are colorless also white, and yellow to brown stones that are transparent to translucent .

Thank you Irene for your inquiry. The earring components are sold individually so that you may purchase the exact quantity that you need for your project. If you are making a repair to an earring you do not always need to have a pair, but rather just a single piece. We hope this is helpful, and appreciate hearing from you.

The wider barrel bails look great when you're stringing a thicker stringing material through them, like silk ribbon or leather cord, or several thinner ribbons twisted together. You can dangle a large charm or pendant from the 3mm loop, or add a larger open jump ring to it and dangle several charms of varying lengths. For example: http://www.artbeads.com/silk-dream-necklace.html

The gold-filled head pins are sold individually.

We recommend using the Sterling Silver 2-Strand Toggle with the ISAB-000X, as the holes on this particular toggle line up best with the holes on the bead.
http://www.artbeads.com/iscl-0123.html