point is a tiny ball, usually 0.5 or 0.7 mm in diameter, that transfers the ink from the reservoir onto the paper as the pen moves.

Advantages

There are two main types of roller ball pens: liquid-ink pens and gel-ink pens. The "liquid-ink" type uses an ink and ink-supply system similar to a fountain pen, and they are designed to combine the convenience of a ballpoint pen with the smooth "wet ink" effect of

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