Take a piece of thread and wrap it around the finger you would like to measure, marking where the end of the string meets
the start with a pen. If you have large knuckles, take the size from there, if you have straighter fingers you can take the size lower
down. Always thinking of wrapping the tread not to tight and not to wide , but moderate. Then, line the thread up against a ruler
to measure its length in millimeters. You can then use the chart below to calculate your ring size.