Ice Blue Catseye Moonglow studs in a great bold shape. Each measures about 12mm or just under 1/2" in diameter. See the last pic of the model wearing these in a different color for size.
Most all earrings are made with vintage lucite parts that were made in the US in the 1960's - early 80's. We hand-set them with surgical steel earring posts and they have sturdy surgical steel/acrylic backings on them as well. Light-weight & fun to wear.
