size: The total length is about 6~7.5 吋 (15 cm~19 cm) There are extension chains that allow you to adjust the length yourself. Material: Zircon, copper **Material Introduction** Copper-momo's march Most of the jewelry is mainly made of copper. It is not coated with any chemical metal. It is hypoallergenic. It combines with oxygen in its natural state. The color is deeper and deeper. It turns into a bronze with uniqueness and vitality, just like brushing. None of the jeans are the same color, but each one has its own story. Zircon - momo's march A lot of sparkling diamonds are zircons. Many classic elements such as rectangular diamonds and round diamonds are made of zircon. In natural gemstones, zircon is second only to diamonds, and thus has a diamond-like brilliance, so zircon is known as a gemstone of comparable diamonds. **Storage method and precautions** 1. All the ornaments are fixed by the traditional jewellery setting method (prong setting). It is not the use of adhesive. The setting method is classical and beautiful, and the gems are firmer and fixed. Please pay attention to the accessories when you wear them. Do not drop, knock or adjust the curvature yourself. In order to avoid the diamonds falling off. 2. If you need to clean, you can use the salad with a soft toothbrush to clean the jewelry. After cleaning, wash it with water and blow it dry with a cold air, then put it into the zipper bag and store it. 3. When storing and wearing jewelry, avoid contact with water, sweat, detergent or lotion to avoid accelerated oxidation. 4. Jewelry plating and electroplating products will fade with the number of uses and the environmental pH value. After fading, the color can only be restored by re-plating. 5. It is not suitable to wear when bathing, swimming and hot springs. 6. Most of the copper jewelry has a soft texture. For example, long chains and thin chains should be avoided. Other rings or bracelets are not recommended to adjust the curvature, open or bend the jewelry. 7. In case of any phenomenon not mentioned in the instruction manual, please contact customer service staff. We are happy to provide consultation and maintenance services for each silent lady.