Rock hard with these beautiful stone eyelets made by Diablo Organics! Diablo Organics knows how to turn precious materials into brilliant jewelry. These double flared eyelets are made of Opalite and polished to a high sheen, to make the stone really, really stand out. Opalite is man-made glass variaty that shows different hues of blue, pale yellow and even pink in different lighting. Almost hypnotizing! Double flared, so you won't be needing any o-rings to keep the jewelry in place.