$2.50
In stock and ships within 1 business day.
4.7 (9 reviews)
DescriptionSpecifications
Uni-ball Signo UM-151 gel ink pens, also known as Signo DX, 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!

Model NumberUNI UM151.12
Weight0.4 ounces
ManufacturerUni
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 Purple
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 Violet
Tip Length 4.4 mm
Tip Material Metal
Tip Size 0.38 mm
Tip Type Conical

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Customer Reviews

As an amateur writer,...
October 18, 2013
Verified Purchase
As an amateur writer, I like to edit my work by hand. I type out my stories, then print them and mark ‘em up with good ol’ pens. After much trial and error, these Unis are my favorite by far. I have tiny handwriting, and the pen really gets in the trenches between the fine 12-point font size.

My main color to correct my docs is Bordeaux Black (a fantastic option to the dreadful red), but I want to switch up the colors in this line. The purple is a very vibrant and strong color, and immediately reminds me of Marie from Breaking Bad.
I found that this specific pen skipped a little sometimes, which didn't really happen with the other colors I have. Not sure if it's the pen or the color itself, but I thought I'd point that out.
1 person found this helpful
I am very picky when...
March 8, 2012
I am very picky when it comes to violet/purple ink. This is one of my favorite! The ink in this pen is the perfect balance of red and blue creating a violet that actually matches the cap.

The pen writes very well and dark enough for everyday. Thick enough for my small hands to be comfortable writing all day.
I would choose this purple over the pilot G-2 milky-purple any day.
1 person found this helpful
lisagretchen
These really are the...
June 17, 2015
Verified Purchase
These really are the best everyday pens. Love them.
I love this shade! I...
May 8, 2015
Verified Purchase
I love this shade! I made this purchase (and a few other colours too) to grade papers. I think the 0.38 mm size is perfect for grading and the colours are a wonderful substitute for red.
jeannie.cheung
These are my favorite...
April 13, 2015
Verified Purchase
These are my favorite gel pens. I normally use the black-red for corrections but thought I’d give another ink a try.
The purple is lively, bold, and stands out well on my paper when I make corrections.
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