If you already have a ring that perfectly fits your finger,
Measure Your Current Ring
Select a ring that perfectly fits the finger
Choose a ring that is snug enough not to fall off, but also loose enough to slide over your knuckle.
Measure the inside diameter
Use the Ruler
Place your ring on a flat surface and use a ruler to measure the inside diameter of it.
Then, click here to match your "Inside diameter in mm" with the Hong Kong (Meselfes) size.