Uni-ball Signo RT UM-138 Gel Pen - 0.38 mm - Blue

Uni-ball Signo RT UM-138 Gel Pen - 0.38 mm - Blue

In stock and ships within 1 business day.
4.7 (16 reviews)
DescriptionSpecificationsFrequently Asked Questions
Uni Signo RT gel ink pens contain water-based pigment gel ink and feature a retractable 0.38 mm gel ink roller ball pen, rubber grip, and a steel point for strength.

Super practical and affordable, the Signo RT pens have been a long time tried and true favorite of JetPals.

Frequently Bought Together

This item: Uni-ball Signo RT UM-138 Gel Pen - 0.38 mm - Blue - $1.65
Total Price: $3.30

Customers Who Bought This Item Also Bought

Curated Collections

Articles & Guides

Customer Reviews

The greatest pen on this...
February 9, 2015
Verified Purchase
The greatest pen on this Website. Buy it immediately.
1 person found this helpful
For years I used a Parker...
August 30, 2015
Verified Purchase
For years I used a Parker T-Ball Jotter as my primary pen, but I was getting tired of the gumminess of the ink, and no feel for flowing ink like with a fountain pen. I saw an article in the New York Times about these pens so I gave them a try. The Blue is a little too light for me, so I just ordered a Blue Black refill. As for writing with them, it is a pleasure. The pen fits well in my hand, smooth ink flow, no skipping or splotching like you get at times with a Jotter.
This is my number one...
July 27, 2015
Verified Purchase
This is my number one gel pen. I've tried a few but this one is best. Smooth writing, retractable, pretty blue ink, and refillable.
I have this in the polka-dot...
February 28, 2015
I have this in the polka-dot case. It writes very smoothly but sometimes it does skip. I think the UM-151s write more smoothly, but the UM-138s are so much more comfortable to write with for extended periods of time. The UM-138s also have a bit more friction when writing than the UM-151s, which I like because it helps me control my writing a bit better. Overall, this is a really good pen.
simply perfect...
February 23, 2015
Verified Purchase
simply perfect