Measurement Step:
1.Wrap the thread around the finger to be sized.
2.Tighten the thin thread better to feel a little tight.
3.Mark on the thread,when it is tight.
4.Read the perimeter with ruler, choose the size with the chart below.
Tips for finding your ring size:
1.Measure your finger in warm temperatures at the end of the day.
2.Please use thin thread to measure at least 3 times to get the most precise result.
3.Different countries and areas have different ring-size systems.All sizes listed here are standard USA sizes.