Easy to use. The new portable pen-type brush needs grinding ink, which can automatically ink and make writing more convenient. The nib is deeply embedded, so the brush won't lose hair. With a pen-like appearance, you can write hundreds of words at a time. This kind of brush can be used to sign in and copy classics and calligraphy. The pen-type brush is designed to be portable, giving people the overall feeling that it is easy to use and convenient.