以100%原比例打印纸质测量圈，离线测量手指与戒指。
打印须知：在打印设置中务必选择「实际大小」或「100%比例」（不要勾选适合页面大小）。
Place your ring flat directly over the printed size circles. Inspect the inner edge alignment against these 3 visual benchmarks.
Printed black line is clearly visible inside the ring opening with white gap.
The inner edge of the ring rests directly on the printed line without hiding or overflowing it.
The printed black circle extends beyond the outside border of the ring.
Cut along the outer solid boundary line of the paper sizer.
Carefully cut a small vertical slit along the marked line labeled "A".
Wrap strip around finger base and slip pointed tip "B" through slit "A".
Pull comfortably snug and read the size number aligned with slit "A".
Place your ring over circles until inside diameter matches exactly.