1. What is the inner diameter of the ring size 12
12 ring, according to China according to the Chinese mainland version of the size table diameter: 16.5mm;
2. How to measure your ring size
The method of measuring the ring size is also very simple, as long as there is a string, ruler, pen and other simple tools can be completed, the specific method is as follows:
3. After removing the rope, expand and straighten it, and measure the length between two points of the rope with a ruler.
4, refer to the ring size comparison table, according to the measured circumference, find the corresponding ring number.
