Ohto Fine Ceramic Roller Ball Pen - 0.5 mm - Black Body - Black Ink

Excellent writer. Nice fine smooth line.

Contrary to what's indicated in some of the other reviews, the cap DOES post to the end of the pen. It has to be mated properly. A sleeve on the cap slides under a mating piece on the body. When properly mated, the cap becomes an almost seamless extension of the body of the pen. It's the best, most secure method of posting a cap I've ever seen.

This is a great pen! I bought it on my third order and have used it extensively since then. It writes a nice, solid, smooth line that works on a variety of paper. I think I will keep this one around for a while and yes the top does post, it just makes the pen a bit top heavy.

The matte black finish on this pen is what really attracted it to me. The ink writes a little wet, making the 0.5mm lines seem much thicker than they should be. Also, as stated in many other reviews before mine, the cap does post to the end of the pen. The problem that I have is because of this unique method, it causes the pen to become very long in hand. Tthe extra length doesn't make it too top heavy, but you can feel it. It's a great pen, but I prefer the Pilot Hi-Tec-C Cavalier Executive gel pen just a bit more.

May be the perfect pen - heavy, but balanced and not too thick, writes beautifully with no smudgy bit at the beginning like a ballpoint.

This pen writes very well. The line is a little thicker than my other 0.4mm, but it's still a very nice pen. The outside seems to pick up smudges somewhat easily.

Also, yes, you can put the cap on the back of the pen. You line the thin silver metal part into the groove of the back of the pen. It's not completely obvious that there's a thin gap between the metal and the black part of the back. Buuut it's there. :)