Round earrings are 1/2' in diameter and made from lightweight metal and then finished with a silver plating. Gold plate finish is also available. The ear guard is hypoallergenic clear rubber. The mixed media artwork is sealed in a jeweler's polymer resin. The resin is crack proof, water and scratch resistant, and is self-healing. As with any original piece of art, extreme exposure to sunlight is not recommended. CLICK ON THE IMAGE TO SEE THE FULL SERIES