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Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black

by Uni
  4.4  45 reviews | Write a Review
$2.50

Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24
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Uni-ball Signo gel ink pens are known for their smooth writing and exceptional ink quality. And, to everyone's delight, there is a sea of colors and tip sizes to choose from. Find the perfect pen for any task, whether it's writing meticulous notes, marking your calendar, or decorating your scrapbook with colorful captions.

Everything about this pen, from its solid construction to its carefully-formulated ink, ensures a wonderful writing experience. The sturdy tip does not bend or break, even with heavy-handed use. The pigment-based ink flows smoothly and is waterproof, fade-resistant, and feather-resistant. Much of that is due to special viscous properties of the ink. The ink is viscous while in the barrel, but as it passes through the pen tip during writing, the viscosity drops. This results in smooth ink flow. Immediately after it hits the paper, the ink returns to its viscous state, which prevents feathering. You are left with beautiful clean lines that you can enjoy for a long time!


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Frequently Bought Together
Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - UNI UM151.24+Uni-ball Signo UMR-1 Gel Ink Pen Refill - 0.38 mm - Black - UNI UMR1.24
Total Price: $4.15
This item: Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Black - $2.50



Specs
Model NumberUNI UM151.24
Weight0.4 ounces
Body Color Clear
Body Material Plastic
Clip Material Plastic
Clippable Yes
Color Set No
Diameter - Grip 10.3 mm
Diameter - Max 10.3 mm
Grip Color Black
Grip Material Rubber
Ink Characteristics Waterproof
Ink Refillable Yes
Length - Capped 13.8 cm
Length - Posted 15.3 cm
Length - Uncapped 13.1 cm
Mechanism Capped
Pre-Installed Ink Color Black
Tip Length 4.4 mm
Tip Material Metal
Tip Size 0.38 mm
Tip Type Conical

Reviews


September 1, 2011
A marvelous everyday...
Verified Purchase
A marvelous everyday pen. This pen is my favorite. I have been ordering other pens to try them out and I always end up coming back to this one. I have gone through 11 of these pens so far and plan to continue using them. Some may find the line too thin, but I like it. The rubber grip seems to wear out and get a bit loose over longer periods of time (after replacing the inkwell once or twice). The cap also becomes a touch loose over a similar time period. I always put two or three of these on any Jetpens order I make. At the risk of making these pens be out of stock more frequently, I would recommend this pen to anyone looking for a hardworking, high quality, everyday pen.

3 people found this helpful
mookiemorjax
 
January 29, 2011
From the perspective...
Verified Purchase
From the perspective of a university student, this pen is excellent. From working out mechanisms in organic chemistry to just simply writing (notes or essays), this pen does an outstanding job.

Compared to the Uni-ball Signo RT UM-138 (0.38), this pen is better built, has a slightly more comfortable grip, has a much larger volume of ink, and writes with the same "thinness" (but with a darker black). The RT's black ink always have looked faded to me and they all definitely run out of ink way too rapidly or even a mediocre writer/drawer/whatever.

The RT has the "clicker" ability (which I originally wanted this pen to be and would buy another one if it were a "clicker") but the cap removal process isn't a big deal. I've actually started to like the look of the cap and the way it snaps on makes it feel like it's a high class pen.

Overall, this pen is one of the best that I've used.

3 people found this helpful
justin0979
 
March 28, 2014
i bought this pen expecting...
Verified Purchase
i bought this pen expecting to be able to ink drawings for watercolor since it said it was waterproof, but this pen smears SO easily i'm incredibly disappointed.

also, as others have said, the ink flows out of the pen very smoothly, but the actual design of the pen makes it a bit uncomfortable to write with. it may just be that it's a bit wider than im used to

2 people found this helpful
 
June 11, 2011
The best everyday pen...
Verified Purchase
The best everyday pen sold by JetPens. Can be used for writing and for drawing. Waterproof. Mitsubishi (Uni Ball) makes fantastic products. My favorite brand.

3 people found this helpful
dbajraktarevic
 
November 5, 2014
I love this pen for everything...
Verified Purchase
I love this pen for everything. Nice bold ink, writes a bit scratchy (which I like) and is always consistent. I would give this 5 stars but the ink smudges considerably on moleskine paper, but this is also a gel pen so do not expect it to dry the second it touches the paper.

Ramacherm


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