Uni-ball Signo RT1 UMN-155C Gel Ink Pen - 0.38 mm - Black Ink - Aqua Body

In stock and ships within 1 business day.
4.3 (7 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 UMN155C38.32
Weight0.4 ounces
Body Color Light Blue
Body Material Plastic
Clip Material Plastic
Clippable Yes
Color Set No
Diameter - Grip 10.6 mm
Diameter - Max 10.9 mm
Grip Color Light Blue
Grip Material Rubber
Ink Refillable Yes
Length - Extended 14.0 cm
Length - Retracted 14.1 cm
Mechanism Retractable
Pre-Installed Ink Color Black
Tip Length 4.8 mm
Tip Material Metal
Tip Size 0.38 mm
Tip Type Conical

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Customer Reviews

The ink is dark and smooth....
April 6, 2013
Verified Purchase
The ink is dark and smooth. The .38 mm tip produces a thin line, which is great. The grip is okay and the body color is great. Overall, it's a good pen.
1 person found this helpful
I'm not sure why, but...
March 29, 2015
Verified Purchase
I'm not sure why, but this blue version was much less smooth than the pink version I also bought. They're supposed to be the same pen, so I'm not sure why this is the case. Still smooth and nice, but I wish things were more consistent.
one of my faves. smooth...
March 9, 2015
Verified Purchase
one of my faves. smooth writing and fashionable.
This has the same concept...
November 20, 2014
Verified Purchase
This has the same concept as the signo in black, however is part of the special collection that has special colors. Personally, I think that the baby blue is very cute, but the other reviews are right in that it gets dirty very easily. Not sure why. However, the texture is very nice and smooth on the outside.
I love the way that this...
October 20, 2014
Verified Purchase
I love the way that this pen writes, but the barrel gets dirty so easily. My pencil bag is super super clean and I have never had that issue before. The ink runs out really fast so buy loads of refills!