Auto is a new writing tool. The pen has an inner tube with a viscous ink that is distributed by rotating a small metal ball (0.7 mm to 1.2 mm in diameter) made of brass, steel or tungsten carbide at the tip when used. Auto is one of the types of pens.
Features of a good auto
Improper pen causes pain in the wrists and fingers.
Features of a good pen for long-term writing include:
Triangular cross-section pens are better than circular cross-section pens.
Pens that have a soft rubber coating do not irritate the fingers.
People who put a lot of pressure on the pen while writing usually feel pain in their index finger. In this case, they should use pens with elastic rubber coating.
Another feature of a good pen is the high quality of its ink and psychography, which calms the writer’s nerves.