Material Material: Pure brass (unplated) / natural stone ⭐️If you need to customize or change the type of natural stone, please contact the designer! Maintenance of brass maintenance: It can be wiped with a copper-wiping cloth, or washed with toothpaste or tooth powder. After cleaning, be sure to wipe the jewelry completely with a cloth. If you don't need to wear it, it is recommended to store it in a sealed bag. Flavonoids without electroplating, no fading or allergies. It's just that flavonoids are unplated metals. After wearing them, they will have a retro feel due to exposure to sweat, cosmetics or moisture in the air. Many girls buy lol for the oxidized color. If you prefer bright colors, you can follow the above methods for maintenance. ⭐️Can't accept a little retro feeling, please do not buy, thank you! Attention: 1. The goods are handmade. The production and delivery will only start after the order payment is completed. The production time will take about 1-3 working days (not including the delivery time), please wait patiently. 2. Each natural stone has its unique texture, and the color and size are not necessarily the same. It may contain impurities or small cracks, etc., which cannot be exactly the same as the product in the photo. ⭐️If you need to modify the size after receiving the product, you need to pay the postage for the return!