The Uniball Signo DX, a Japanese gel ink pen in .28, .38, and .5, writes smoothly to create bold colorful strokes. This pen also happens to be my absolute favorite Japanese gel pen. I have been using the bordeaux-black and brown-black regularly since 2000. I find the tips to be stronger than most gel pens, which is important to 'heavy-writers' like myself.
Strong super-fine tip
.28 size available in Pink, Red, Orange, Blue, Blue Black, Brown Black, and Black.
.38 size available in baby pink, pink, pure pink, red, bordeaux-black, yellow, orange, mandarin orange, lime green, emerald, green, green-black, sky blue, light blue, blue, blue-black, violet, black, brown-black, apple green, blue green, prussian blue, purple, lilac, light pink, yellow, beige, khaki, brown, gray, and dark gray.
.5 size available in Pink, Red, Orange, Blue, Blue Black, Brown Black, and Black.
.5 size Complete Bundle currently includes in Baby Pink, Pink, Red, Mandarin Orange, Orange, Golden Yellow, Lime Green, Emerald, Sky Blue, Light Blue, Blue, Blue Black, Violet, Brown Black, and Black.