Material: 14K Gold-plated, copper-basedStone: Freshwater pearlSize: 17.5+5.5cm extension chainWeight: About 17.5gReminder: Measurement is manual measurement, a little error is normal, please refer to the actual product!Gemstone products are cut from raw stones. Each stone's size and color depth differ slightly, but this is not a defect. Instructions for use and care:Precious metal jewelry should be kept away from direct contact with chemicals (perfume/detergent/skin care products) as much as possible. It should be avoided when wearing during bathing/swimming or strenuous exercise. When not wearing, it should be wiped clean and stored in a sealed box or bag to avoid long-term contact with air and oxidation. The wearing life of jewelry is closely related to personal wearing and storage habits.