Zhanguo Red Agate with1/20 14 K Gold Filled Pendant Material : 1/20 14K Gold Filled, Zhanguo Red Agate About 14K Gold : 1/20 14K Yellow Gold Filled ( for example, 14K gold, 12K gold, etc ) K Gold is made of a metl such as brass, and the alloy of gold is used as an outer layer by heat and pressure. If it is electroplated, it will not be used for a long time without worrying that the gold on the surface will fall off, but it has more advanced appearance and brilliance than high quality pure gold. It is a popular material in Europe and America. This product is made of materials that are not sensitive to sensitive materials, and people who are sensitive to metal will feel comfortable wearing them. Approach This product is made of a fine material, after wearing it, please use a cloth to gently touch it to avoid contact air.