These are made from thin aluminum sheet, and are almost spookily light. The surface texture is created through careful application of heat. The wire through your ear is titanium.
It took us a long time to start making earrings; they get in the way of a bicycle helmet, so we never wear them, and forget they exist. But we also know that many folks love earrings, so here they are, just for you! See, we do listen, after all.