Thank you for viewing. Please check my profile before purchasing. This is a power stone bracelet made with natural stones. I don't know what kind of stones they are. The length can be adjusted from 17cm to a maximum of 23cm. Weight: approximately 7.6g There are no noticeable scratches or stains, but this is a used item stored by a private individual, so please refrain from purchasing if you are concerned about the details or are overly sensitive.