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. Transparent and clear glass material, showing bright luster. 4. Material: 925 silver + glass + nano opal + platinum plating 5. Craftsmanship: gold plating 6. Specifications: height and width: 2.5 x 1.1cm; aperture: 0.45cm 7. Weight: about 2.7g 8. Note: This product is manually measured, and there may be errors of 0.1-0.2 mm and 0.1-0.2 grams in length and weight; there may be a little color difference due to display and light problems. Please refer to the actual product!