The correct measurement method:
1. Prepare a blank sheet of paper and a standard scale
2. Please step on flat white paper with your feet and use your
pen to point out the heels and toes
3. If there is a slight gap between the left and right foot lengths,
the larger one should be the measurement standard.
4. The measured data should be roughly the same as the usual
size. If there is a large deviation, the measurement method is
incorrect or the data is incorrect.
