Seeing how carefully you ask, it must be a gift from a very important friend or relative. Hey hey, pay attention to maintenance. Wear it and wash clothes with laundry detergent, washing powder and other things, because these things contain strong acid and alkali, which will damage silver products and make them black. The last time my mother washed clothes with a silver bracelet given by my grandmother, she found that some places of the bracelet were black and the patterns were all black, which was very painful ~ Oh, besides, we can't use it for bathing, washing hair and washing dishes. Don't knock against hard things. Silver products are often worn on the hands, because the oil secreted by the human body will make the hands brighter and brighter, so it is better to wear them often, but some people will sweat and so on, which will cause damage to the bracelets, but this is only a very small number of people, and when not wearing bracelets, try to put them in a closed bag or box, because silver products will slowly oxidize with the air! If it gets dirty after a long time, buy a special nursing solution for cleaning silver products, which is sold in large supermarkets. If you can't buy it, take it to the jewelry store and ask them to help you clean it! ~ give it a try. I've experienced it myself! ~