What pen is good for watercolor painting?

Well, can I say that China people use imported watercolors, and foreigners go to China to use Chinese painting brushes? Haha, well, since painting is more professional, I'll introduce imported professional watercolor pens. It is suggested that the landlord try to use China's brush and compare it to see which one works. ...

Da Vinci in Germany? Master v 1503 pure mink travel watercolor pen. The file extension of encoded image stored in jpeg file exchange format.

German Da Vinci Da Vinci Master Pure Squirrel Mao Chao Soft Watercolor Brush MOP Brush 4 18.jpg

German Leonardo da Vinci's very fine Gou Xianbi face pen model hammer painting pen pure mink hair1505.jpg.

All the above are pens suitable for watercolor painting, so-called watercolor pens.