2. Cut a transparent rubber strip.

3: Transparent tape sticks to the nib.

4. Right thumb and forefinger hold the nib with adhesive tape.

5: Once pulled out, the nib is removed.

6: Remove the nib.

7: Then install the new nib with scotch tape.

Precautions:

Cap assist: The ingenious point of this method is that no external object is needed to pull out the nib.

Take off the cap, turn the inside of the nib over, and then press the gap between the nib and the tongue with the circle of the cap with your right hand. Be careful to press it tightly, and the tip will be pulled out with a slight drag of your left hand.