Lovely sparkly black metallic finish druzy earring studs on gunmetal posts! Black finish is a solid metallic dark charcoal color. A super lightweight resin that looks and feels like a real druzy gemstone! Approximately 12mm (a half inch) across. Hypoallergenic lead and nickel-free post earring studs - great for sensitive ears! Securely affixed to posts with jewelers' grade epoxy adhesive. Proudly made in the USA!!!