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

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

In stock and ships within 1 business day.
4.5 (25 reviews)
DescriptionSpecificationsFrequently Asked Questions
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.

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This item: Uni-ball Signo RT1 UMN-155 Gel Pen - 0.28 mm - Black - $2.50
Total Price: $3.85

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Customer Reviews

This sleek pen puts...
September 6, 2013
Verified Purchase
This sleek pen puts down a consistently smooth, very fine dark line. No smudges, no blotches. Simple design. Very comfortable to hold when writing.
5 people found this helpful
Writing another review...
February 3, 2015
Verified Purchase
Writing another review because... why not? I love these so much that the two I bought never left my pocket until there was absolutely nothing left in the ink cartridge. Best $2.50 I've spent in my entire life!
2 people found this helpful
Probably could take the...
January 8, 2015
Verified Purchase
Probably could take the top spot on my Top 5 pens list, the is super smooth, it never skips, the grip is a nice touch, and the color is great.
1 person found this helpful
Will be purchasing again....
November 6, 2013
Verified Purchase
Will be purchasing again. It's real smooth to write with and very fine.
1 person found this helpful
Coming from the UM-151,...
November 15, 2015
Verified Purchase
Coming from the UM-151, I expected an improvement from the "rounded edges" technology.

However, it seems that this pen has a narrower writing angle that it tolerates and is more prone to skipping. This may be caused by me putting too little pressure onto the pen tip, as there is a spring behind the ball. Nevertheless, it seems that inkflow is slightly reduced.

Having the clicking mechanism is nice for me to take around, but also makes it rougher to write with.

One thing I love about this pen is the grip, though. It does not protrude from the pen body, and extends very close to the tip. This is great for me because I hold the pen sometimes lower than the grip.