This Earth Texture Color Series pen has a speckled color inspired by nature! 

Unlike general gel ink, the newly developed "uni-ball one" ink uses a new pigment that minimizes the penetration of color materials into paper fibers. Enjoy vibrant and easy to read notes, thanks to the specially formulated ink that features larger pigment particles.

 

With darker black and more vivid colors - the Uni-ball One is the perfect pen for left-handers and those that highlight. Studies even found that students who studied with notes written with this ink remembered the content more!

The Uniball One F is a slightly improved iteration of the Uniball One pen. The barrel is slightly wider and has a lower center of gravty, allowing you to write comfortably for longer. It features the same wire clip with ink that is a little bit darker than the original.