1. Nano opal, colorful texture, makes the jewelry more beautiful and clear. 2. Adopt international standard 925 silver, skin-friendly, comfortable and healthy to wear. 3. Thickened electroplated three-layer protective color, no fading when worn, shiny as new. 4. Material: 925 silver + nano opal + platinum plating 5. Process: gold plating process 6. Specifications: Height and width: 1.9 x 0.6cm; aperture: 0.3cm 7. Weight: about 2.5g 8. Note: This product is manually measured, and there may be 0.1-0.2 mm and 0.1-0.2 g errors in length and weight; there may be a little color difference due to display and light problems. Please refer to the actual product!