Commodity size: Ring with a thickness of about 2mm, currently stocks No. 9 International, other sizes can be customized by private message. Material: unplated brass **Hand-knocked brass rings still retain hand-made traces, perfectionists please think twice. **The color of brass jewelry may become darker after tempering for time. You can wipe it lightly with white vinegar, toothpaste, etc., or wipe it with a silver cloth. **Please put it in a zipper bag when not wearing it.