[MATERIAL]*925 Sterling Silver Plated Copper. It do not tarnish and oxidize easily, it's wear-resistant, which can last longer than other jewelries. It is amazingly hypoallergenic and has high resistance to rust, corrosion and tarnishing, which is easy to maintain.[Warm tips]1.Please avoid contacting with the acid and alkali, corrosive substances.2.Please avoid the collision, so as to avoid surface scratches.3.Please avoid wearing it when sweating a lot, shower or sleep, etc.4.Please wipe them with soft cloth when you clean your jewelries.[Long time Warranty]We believe our products. That's why we promise products 90-day money back or exchange guarantee, easy-to-reach support.In order to leave you a happy shopping experience, if you have any questions, no matter pre-sale or after-sale, just contact us, we will do our best to help you and offer an excellent service.