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Pens  >  Gel Ink Pens  >  Uni-ball Signo UM-151 Gel Pens (0.28 mm, 0.38 mm, 0.5 mm)  >  Uni-ball Signo UM-151 Gel Pens - 0.5 mm

Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red

by Uni
 4.6 (235 customer reviews)
$2.50
Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15
  • Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15
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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!

This is the Red pen. The close-up tip photo features the Black pen.
Frequently Bought Together
Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - UNI UM15105.15+Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Black - UNI UM15105.24
Total Price: $5.00
This item: Uni-ball Signo UM-151 Gel Ink Pen - 0.5 mm - Red - $2.50
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Pen SetsFine Tip
Specs
Model NumberUNI UM15105.15
Shipping Weight0.40 oz
Body Color Clear
Body Material Plastic
Cartridge-Compatible Yes
Clip Material Plastic
Clippable Yes
Color Set No
Design Style Pen
Diameter - Grip 10.2 mm
Diameter - Max 10.2 mm
Grip Color Red
Grip Material Rubber
Length - Capped 13.8 cm
Length - Posted 15.2 cm
Length - Uncapped 13.1 cm
Mechanism Capped
Pre-Installed Ink Color Red
Tip Length 4.3 mm
Tip Material Metal
Tip Size 0.5 mm
Tip Type Conical
Reviews
5 people found this helpful
  I think I'm in love with..., December 3, 2011
By lbsiegel - See all my reviews
This review is from Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Lavender Black
I think I'm in love with this pen. I'm a huge fan of the .25mm Slicci, and this pen--this color in particular--gives it a run for its money. Ink flow is smooth, pen is well-balanced, and the color is phenomenal. You know how a lot of purple pens end up looking kind of fuchsia-ish? This pen, on the other hand, is a true, deep, royal purple. I adore it. I also got the Black, Bordeaux Black, and Brown Black, and I love them all for the same reasons (although the lavender black is my favorite color). There is a noticeable difference between this .38mm line and the Slicci's .25mm line, so I won't be using this one for extreme detail work, but there's nothing wrong with having different instruments for different purposes. Excellent pen!
5 people found this helpful
  I love this pen. It writes..., April 26, 2011
By ebe... - See all my reviews
This review is from Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Green Black
I love this pen. It writes smoothly, and the ink is a deep, pine green that looks great no matter where I've used the pen. The color is subtle (it doesn't scream "I'm GREEN!") but still looks unique.
4 people found this helpful
  I find the 0.38 mm version..., August 18, 2010
By zerodb - See all my reviews
This review is from Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Blue Black
I find the 0.38 mm version to be a sweet spot of fine, concise lines and ease of writing. The blue black ink is a fantastic alternative to the usual black but still professional in appearance to be used in a business setting.
4 people found this helpful
  This is a very bright..., January 24, 2009
By transient.nature - See all my reviews
This review is from Uni-ball Signo UM-151 Gel Ink Pen - 0.28 mm - Pink
This is a very bright pink! Almost like a hot pink. I like the 0.28 Uni pens. I think these are quickly becoming one of my favorites.
3 people found this helpful
  This is the sweet spot...., May 21, 2012
By tys... - See all my reviews
This review is from Uni-ball Signo UM-151 Gel Ink Pen - 0.38 mm - Blue Black
This is the sweet spot. The .38mm is not too thing or too bold. I found .4 to be too thick and .3 to be too thin. 0.38mm seems to be the sweet spot.

Also, as far as the color, its just the right amount of blue where it doesn't hurt your eyes but its enough blue to distinquish it from black.

Its the best!
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