uni-ballJetstream RT Roller Ball Retractable Waterproof Pen, Blue Ink, Fine, Dozen (62153)

Smooth writing and the pen writes immediately even after not being used for a long time. The ink dries very quickly.

My husband I just love these pens, which I learned about in some publication. We order them iin blue and black, and we've both used them constantly ever since we bought them. Refills are available in black ink, but I couldn't find any in blue. So I just bought a whole set of new blue pens so I could keep using these. They write super smoothly and are great for my husband who has a bit of a tremor in his writing hand. Highly recommend for those of us who stil enjoy writing by hand.

Only pens I use.

Good writing line. The ink doesn't collect and blob on the ball end as you write. These don't seem to dry out sitting around unused.

Heavy use in a dirty and dusty environment. Tip can be ruined if dropped on hard surface, but stands up to harsh writing conditions. Worth the money.

I don't write reviews but I wanted to share my appreciation for this pen. I'm fairly particular about my pens but I've been using this type of pen for over 3 years now and I don't have any plans to change. It's gotten me through law school.WRITING:The .70mm gives a very fine point while still writing extremely smoothly. The ink on these guys soaks in very quickly and I've never had any issues w/ smudging. The blue ink is my preference since it provides a contrast to all the black ink when taking notes/underlining and it has a good weight (especially if you're prone to spinning pens around your fingers like I am).DURABILITY:I carry this pen around in my pocket all of the time. It has never stained my pocket or spilled/broken (knock on wood). I've occasionally had the barrel crack on me but truth be told, I'm rough on pens. Even when the barrel does crack, because of the rubber coating, it still writes perfectly well and keeps together. I couldn't ask for more out of a pen.AVAILABILITY:I've never found the 0.70mm blue ink in anything other than a three pack w/ a black and red pen in stores, which is frustrating, so instead of getting a bunch of pens I don't need, I ordered them here. Aside from ordering from Staples/Office Max/Office Depot, this is the only other place to order them since Uniball doesn't ship directly (I've checked).Seriously, if this pen wrote upside down like the Fisher Space pen (my second favorite - this one being my favorite pen), it would be the best pen you could buy. Period.

These are not 0.7mm. They are more like 0.3mm. It is a very very narrow line.

These are my favorite pens! Writes smooth and good ink flow.