About LANWLOSI: We carefully craft each product and pay attention to every inch of detail, hoping that it is not only a beautiful clothing accessory, but also carries a beautiful story. We hope our jewelry can bring you a pleasant shopping experience. About Jewelry Maintenance. No 1.Please store in a clean and dry place, such as cloth jewelry box, original box, soft cloth bag, etc., to prevent the jewelry from oxidizing. No 2.Try not to wear jewelry when washing hands or showering to avoid prolonged contact with water. No 3.Metal jewelry should be avoided in high temperature and humid environment. NO 4.Please keep away from irritating household chemicals, if you use chemical products, please remove the jewelry and store it in a safe place. About Service: If you have any suggestions or questions, please contact us on Amazon, we will reply you as soon as possible. Thanks.