The general design of a gel pen is similar to that of a regular rollerball pen, with a barrel containing the writing mechanism and a cap, and a reservoir filled with ink. The barrels can be created in many different sizes and designs; some have finger grips of rubber or plastic. The size of the nib or pen tip ranges from 0.18 mm to 1.5 mm. (source: wikipedia)
A gel pen uses pigmented water–based gel ink, which is thick and opaque, allowing clearer writings on dark or slick surfaces than the typical inks used in ballpoint pens. The main advantage of gel ink is its high gelatinous watery liquid form, which supports a higher proportion of pigments in its medium. The pigments are impenetrable and opaque which allows it to show up clearly on dark paper. Gel pens are available in a rainbow of bright and pastel colours, as well as opalescent, metallic, and glittery colours, thus can be used for many types of writing and illustration.
Pilot Pen sets the standard for gel ink roller pens, engineered to the highest specifications to provide the smoothest writing performance available!
Pilot Gel Pen Series: