Material Material: Pure Brass (Unplated) / Imperial Stone / Tianhe Stone ⭐️ If you need to customize, or change the type of natural stone, you can contact the designer! Brass maintenance method Normally, wipe with copper cloth or copper oil, or wash with toothpaste or dentifrice. After cleaning, be sure to wipe the jewelry completely dry with a cloth. If you do not need to wear, it is recommended to store in a sealed bag. Without electroplated brass, there is no fading problem. Only the brass is unplated metal. After wearing it will contact with sweat, cosmetics or moisture in the air, will show a retro feeling, many girls are to buy the color after the oxidation of lol If you like the bright color, you can follow the above practices. I can't accept the feeling of being a bit retro. Please do not buy it. Thank you! Attention Attention: 1. The merchandise is made by hand. The production and delivery of the merchandise will begin after the order payment is completed. The production time will take about 1-3 business days (excluding the delivery time). Please wait patiently. 2. Each natural stone has its own unique texture, its color and size are not necessarily the same, it may contain impurities or small cracks, etc., and it cannot be completely consistent with the products in the photograph. ⭐️If you need to modify your receipt of goods, you need to pay the postage back and forth!