What should I do if the highlighter runs out of water?

1. Dip the tip of the highlighter in some wine, alcohol, or pour a little white wine into the sponge in the pen tube.

2. First wipe off the dried powder of the highlighter, wash the tip of the pen in clean water, and then filter the clean water on the tip of the pen. When the clean water on the tip of the pen disappears completely, it can be used normally.

In the process of using the highlighter, if it is found that the water is insufficient, that is, the color is not as dark as before, the user can put the pen tip against the notebook, let the pen water flow down, and the words written again will return to the original color.