How to open the ultra-thin loose-leaf book of Guoyu

1. Hold a small piece of iron tilted to both sides with your hands, where your fingers hold it:

2. Small iron sheets are symmetrical at both ends of the notebook. Press the small iron piece described in step 1 with two fingers at the same time, and then press it lightly with force at the same time, and the ring will bounce off by itself.

3. Take out the paper that needs to be replaced and replace it with new paper. After the paper is put away, just put your hands on both sides of the ring and gently pinch it, and the ring will be closed.