1, sharp: the pen tip is soft, writing is elastic and varied. It is suitable for practicing calligraphy and signing, and can also be used for daily writing. The tip can be made into many styles, and most pens abroad are pointed.

2, dark tip: the pen tip is hard, suitable for daily writing shorthand. Early ink is easy to dry, and using a dark nib can prevent the ink from drying quickly on the nib.

Second, the development is different:

1, the former is the earliest prototype of the pen, and the latter is an improvement on the former. At that time, the pen was not airtight and dry-resistant, and the tip sleeve was added to protect it, which could better prevent the ink from evaporating, thus forming a dark tip.

Extended data:

The nib can be said to be the most critical part of the pen, which varies from fine to thick.

Generally, the most common pen tip sizes are "B (width), M (medium), FM (fine-medium), F (fine) and EF (extra fine)", with B > from coarse to fine; M>F & gtEF, pen tip size Each pen factory will have some differences in specifications.

Under the same size unit, the Japanese pen will be thinner than the European pen.

According to the usual writing habits, westerners usually use the M-tip as the main pen and choose the B-tip when signing. Due to the complexity of Chinese writing strokes, F or thinner EF pen tips can generally be used.