My Account  |  My Wish List  |  Log In  |  Blog
JetPens®.com - Love at First Write®
Free Shipping
On Orders Over $25!
What Our Customers Are Saying
Kuretake Zig Letter Pen CocoIro Pen Refill - Super Fine - Blue Black - KURETAKE LP-R-378S
  These make great slim..., July 13, 2014
By djkhimtaka
These make great slim pens on their own, no CocoIro body needed. The lines are super fine with no bleed-through on even the cheapest paper I own. I personally have had no issues with these pens. The nibs are a bit stiff, but you can still get some line variation, and all of the ink colors I've tried have been lovely.

This blue ink is nice and dark, though it could have been a bit darker. It has a bit of a desaturated tone to it as well, which is very nice if you like subdued colors, like me. :D
Kuretake Zig Letter Pen CocoIro Pen Refill - Super Fine - Cool Gray - KURETAKE LP-R-092S
  I've had no technical..., July 13, 2014
By djkhimtaka
I've had no technical difficulties with any of these refills so far. The nibs aren't too dry, but they are stiffer than I originally thought, so the range on line width is not all that great. But I personally enjoy super fine lines, so that works out perfectly for me.

The color is a soft bluish grey, and I found it to be dark enough to read. Perhaps it's a hit or miss kind of thing, but I ordered five different colors and have had great results with all of them so..

I specifically use these pens for my planner, as it has thin paper, and the thin lines produced by these do not bleed through in the least. But I've also done some fairly broad strokes using the side of the nib, and bleed-through was minimal on even my cheapest copier paper.
Kuretake Zig Letter Pen CocoIro Pen Refill - Super Fine - Sepia - KURETAKE LP-R-065S
  Super fine lines to the..., July 13, 2014
By djkhimtaka
Super fine lines to the max! I love the line width. Of course, there's a little bit of a width range, depending on how hard you press down, but the nib is rather stiff, so it's not much. Still, for me personally, I love what it has to offer. I bought a pen body as well, but it's not necessary, unless you have large hands.

The ink itself is a slightly cooler brown, but it seems all the colors I've tried have a cooler tone to them, so they all complement each other well. And of course it dries quickly when you have such fine lines, but is not at all waterproof. Not even when dried for days.
Kuretake Zig Letter Pen CocoIro Pen Refill - Super Fine - Bordeaux - KURETAKE LP-R-203S
  While stiffer than I..., July 13, 2014
By djkhimtaka
While stiffer than I thought the tip would be, I actually enjoy this pen for its super fine lines. And the ink doesn't bleed through even the cheapest of paper I own. The color itself is a nice, slightly desaturated burgundy. I should note that the pen body says the color is "Bordeaux," so I'm not sure why JetPens calls it "Blood Red." Blood color would have more brown in it, I imagine, but this is more of a dark true red with enough violet to be burgandy, and again, somewhat desaturated in hue.

At any rate, I really enjoy the extra fine lines these pens produce, and the ink supply is hefty. Perfectly worth the price, even with a somewhat stiffer nib than imagined.
Kuretake Zig Letter Pen CocoIro Pen Refill - Brush Type - Black - KURETAKE LP-RM-010S
  I didn't have any feathering..., July 13, 2014
By djkhimtaka
I didn't have any feathering or drying issues, but I used actual drawing paper, so perhaps that's the difference. The synthetic bristles hold their shape well, but I will agree that the length and thinness of the bristles does make it harder to control for fine details or writing. It's perfect for making expressive, broad strokes, and some thinner quick strokes. I would suggest this more as an art pen than a calligraphy pen.

The ink itself is a nice, dark black with some transparency, and pairs well with a waterbrush or watercolors.