Pens and Pencils | Reviews and Data

Uni-ball Signo UMR-1 Gel Pen Refill

Signo Broad Gel Pen

The Uni-ball Signo UMR-1 is the 0.38 mm gel pen refill that is sold in the Signo DX and Signo UM-151 gel pens. They are the same pens, in the US and Japanese models, respectively.

The UMR-1 refill is confusing because Uni-ball specifically sells a refill called the “UMR-1.” It’s a gel refill with a 0.38 mm writing tip. The UMR-1 is also a family of refills that include:

  • UMR-1-28
  • UMR-1-05
  • UMR-1-10
  • UMR-5
  • UMR-1ND-38

The UMR-1 refills all use archival ink which Uni-ball calls “Super Ink.”

Uni-ball Signo UMR-1 Gel Pen Refill Information

Street Price Check Price
Manufacturer Uni
Pen Type Rollerball / Gel
Sizes 0.38 mm
Ink Colors Blue, Black, Red, Blue Black
Max Body Width5.0 mm
Acid-Free? Yes
Erasable? No
Pressurized? No
Archival? Yes
Fade Resistant? Yes
Fraud Prevention? Yes
Quick Drying?No
Water-resistant? Waterproof?Waterproof
Ink BasePigment
Refill Length (cm)11.9 cm
Tip ShapeConical
Tip MaterialMetal
Refill StandardProprietary
Quantity Sold1
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