Unscrew the refill cover first, and you will find that there is actually a gap in the middle to deal with this situation.

Then unscrew the nut on the side of the pin, take out the parts of the pin, and then take out the pin. Finally, dig out the broken refill with a pin, and you can do it.

Generally, there is a round gear next to the compass foot. Loosen it, then insert something sharp and thin, press it and the refill will come out.

Compass is a tool for drawing circles or strings in mathematics and drawing, and is often used for drawing with a ruler. Compass is made of metal composite material and plastic, including two parts connected by hinge, which can be adjusted.