rollerpen
A rollerball pen is a type of pen that uses a small rotating ball bearing to deposit ink onto paper. The ball is typically made of steel, tungsten carbide, or ceramic and is held in place by a socket. As the pen moves across the paper, the ball rotates, picking up ink from a reservoir inside the pen and transferring it to the writing surface.
Rollerball pens offer a writing experience that is often described as smoother than that of a ballpoint
There are two main types of rollerball pens: liquid-ink and gel-ink. Liquid-ink rollerballs are more traditional
Rollerball pens are popular for their comfortable writing feel and the quality of the lines they produce.