What is Free Ink Roller Pen?
Free Ink Roller Pen are pens which use ballpoint pen writing mechanism with water-based liquid ink without
using ink reservoir inside the barrel.
The less viscous inks, which tend to satuarate more deeply and more widely into paper than other types
of ink, gives free ink roller pen their distinctive writing quality.
Advantages of OHTO Free Ink Roller Pen.
■ Smooth and stable writing till last drop of ink
■ Pigmented water-proof/fade-proof ink
■ Available in 10 ink colors.
■ Available in cone tip and strong needle tip
■ Available in wide varieties of tip size ranging from 0.3mm to 1.5mm writing
Roller Pen technology was pioneered by OHTO in 1964
