Material: Copper set zircon Adjustable opening Size: 18.8MM Weight: 8.4g Environmentally friendly real gold plating makes the jewelry more shiny, more wear-resistant, anti-allergic, and more durable Accessories wear need to pay attention to the following precautions 1. Avoid wearing them when washing your hands, wearing perfume, or using skin care products. 2. Frequent contact with household cleaning products will also cause damage to electroplating or precious stones. 3. Avoid wearing them when going to the beach, swimming or other sports. 4. Avoid rubbing the pendant against the necklace and don't wear multiple rings on the same finger.