1. Material: 925 silver + nano opal + oxidation 2. S925 sterling silver material, skin-friendly and comfortable to wear 3. Symphony texture color, the jewelry is more beautiful and clear, fresh and refined 4. Oxidation process, the surface color is more full 5. Height and width: 12x9mm 6. Earring inner diameter: 10mm 7. Weight: 2.1g (all products are measured by hand, there may be slight errors in the actual product specification weight, the actual product shall prevail