<Product material> Ear acupuncture: 14kfg color retention ear ring We use low-sensitivity materials, if you have special requirements (such as pure silver needles), please contact us separately. Japanese resin: Japanese resin that is not easy to yellow and has excellent light transmission Gold material: 14kgf color-preserving gold parts, it is not recommended to touch water, perfume and other chemicals. Please keep it properly when not wearing it, avoid moisture or long-term exposure to the sun. Flower material: The immortal hydrangeas are all cured and fixed, but the color may change over time. Please enjoy the beauty of natural changes.