Material: Circle: shell, brass disc, electroplated 14k gold ear pin Long: shells, sterling silver ear pins. Product packaging: A cotton bag will be given away after spending over RMB 1,000, and the packaging style will be changed from time to time. Please refer to the new product page for the style. https://c1.staticflickr.com/1/479/31523541635_e46043d0f7_b.jpg Maintenance method: https://c2.staticflickr.com/6/5604/31446793846_c535a0fc04_b.jpg Electroplating metal will oxidize and fade in contact with water and will not recover. Please avoid contact with water or wearing a bath. Due to the different methods of mining veins, cutting, making, and selecting materials for natural stone, the color depth, texture, crystal, shape, size, thickness, etc. of each natural stone product will vary, and there may be cracks, impurities, ore defects, etc. Small defects, the actual finished product cannot be exactly the same as the product photo. Due to the different shapes and sizes of the production materials, the length of the finished product may have an error of 0.1 to 0.4 cm. The arrangement will be slightly adjusted according to the length of the product. The one-piece sterling silver and brass metal jewelry, pendants, etc. are all "matte" polished, not mirror polished. All the products in the picture may have color difference due to factors such as different light or computer screen resolution. The goods are handmade from materials according to the size you choose, and no return or exchange is provided after purchase except for defects.