Uni-Ball AIR - 0.7mm Medium Rollerball - Pack of 3 - Black - UBA-188-L

Good

I have been using these pens for many weeks now. They are of very good quality. Definitely worth buying. The ink flows easily, and hence the writing process is very easy on the hand.

Super fluidas y totalmente son el equivalente a escribir con pluma fuente con excepción de que no le puedes cambiar la tinta. Recomendadas.

Great product and service

I'm what you would call a pen snob, or a collector, or a fanatic, whichever you prefer - I like pens. The Uni-Ball AIR is a wonderful pen for sketching, and writing, especially cursive writing. The pen is juicy, smooth, and provides great coverage for filling areas. It glides on the paper like a catamaran does on water. I tried my best to show some comment shading techniques for drawing. This is not an ultra-fine pen for technical drawing though. It's a great pen for people who like pens, 100%. Its capable of both bold and fine lines, depending on the angle and pressure. Because it the ink is so wet, it can smear so watch out for that. Once it's dry though.. The ink too is jet black, great for redacting your own writing with the same pen. or even over laser printer ink in my experience. Another note on sketching, if scumbling is your preferred method of shading, this is your pen. I simply cannot illustrate in words how nice this pen glides across the paper.

I use fountain pens for drawing cartoons (not for writing, because I'm left-handed), and was looking for a gel or roller ball pen that could give me a similar "flex" effect, with some line variation based on how much I press the nib. The Amazon description emphasizes this flex/pressure/variation quality in the description, so I gave t a try. I was not disappointed. The ink is nice and black, and can go from quite fine (by easing way up on the pressure) to a bold line, all in one stroke. For more casual drawing situations, it is a credible stand-in for a fountain pen with some flex in the nib. Needs about 10 seconds to fully dry and become smudge-proof, for heavier lines or dots, but it makes a clean line that does not smear with colored markers once dried. I'm a lifelong pen junkie, always on a quest for the best cartooning pen, and this is this is the best gel or roller-style pen I have found for this kind of use.