It is carefully handcrafted by our company from 925 sterling silver. All our products are 925 carat and have a stamp. Our stylish products that you can present to your loved ones or yourself are packaged in an equally stylish branded jewelry box. Our wristband products are 21-22 cm for adults. It varies depending on the model. There are 5 cm extension chains so you can adjust the length. We wish you to use our products in happy days...