To determine the size of the ring, it can be measured in a way like this:
- Prepare a piece of string or a small piece of paper.
- Wrap the yarn or the little paper wrapped around your finger.
- Mark the point where the two ends meet.
- Make sure that the thread / paper are not saggy.
- Measure the string or paper with a ruler to get the size of the ring finger. It will get the size of the circumference of your finger.