Uni-ball Signo RT1 UMN-155 Gel Ink Pen - 0.28 mm - Blue Black

In stock and ships within 1 business day.
4.3 (8 reviews)
With their Signo RT1 pen, Uni-ball unveils an innovative tip design. The tip is rounded and edgeless to reduce friction against the paper, resulting in a super-smooth writing experience. Mirroring that smoothness is the simple body consisting of a clicker with clip, and a rubber grip that blends almost seamlessly into the barrel.
Model NumberUNI UMN15528 .64
Weight0.4 ounces
Body Color Dark Blue
Body Material Plastic
Clip Material Plastic
Clippable Yes
Color Set No
Diameter - Grip 10.6 mm
Diameter - Max 10.9 mm
Grip Color Dark Blue
Grip Material Rubber
Ink Characteristics Fade-Resistant, Water-Resistant
Ink Refillable Yes
Length - Extended 14.0 cm
Length - Retracted 14.1 cm
Mechanism Retractable
Pre-Installed Ink Color Blue Black
Tip Length 4.8 mm
Tip Material Metal
Tip Size 0.28 mm
Tip Type Conical

Frequently Bought Together

Uni-ball Signo RT1 UMN-155 Gel Ink Pen - 0.28 mm - Blue Black - UNI UMN15528 .64
Uni-ball Signo RT1 UMN-155 Gel Ink Pen - 0.28 mm - Black - UNI UMN15528 .24
Total Price: $5.00
This item: Uni-ball Signo RT1 UMN-155 Gel Ink Pen - 0.28 mm - Blue Black - $2.50

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Customer Reviews

I love the violet and...
March 29, 2015
Verified Purchase
I love the violet and blue colors this pen comes in, but was disappointed by the blue-black ink; it was softer and not as sharp as the ink in the other colors.
out of this order some...
January 20, 2015
Verified Purchase
out of this order some did not work. and could not get to work. other than that they write well for what I need them for.
Love the point! Very...
December 6, 2014
Verified Purchase
Love the point! Very fine and smooth. The barrel is a bit fat for me, but if you don't mind a thick grip, this is a really nice pen.
I'm in love with this...
December 5, 2014
Verified Purchase
I'm in love with this pen. I just wish the .28 refills came in blue-black.
This has turned into...
November 24, 2014
Verified Purchase
This has turned into my favorite pen! Can't wait to buy more colors :-)