Uni-Ball Signo Broad Point Gel Impact Pen White (2 Pens) Review (2026)

Who this pen suits

This is the broad-tipped Uni-Ball Signo white gel pen, part of the same UM-153 line that art supply retailers like JetPens stock for artists who need opaque white ink on dark surfaces, sold here as a two-pen pack. Letterers reach for it to address black envelopes, add highlights over inked artwork, or write over dark card stock without switching to paint or a brush. Because the tip is broad rather than fine, it suits bold accents and thicker strokes more than delicate hairline detail. Anyone doing small, precise white lettering on dark paper will likely be happier with one of Uni-Ball's finer Signo points instead of this broad version, which is built for visibility rather than fine control.

Tip and ink

The pen uses a broad rollerball tip that lays down a wider line than Uni-Ball's fine and medium Signo points, using an opaque white pigment gel ink that retailers describe as waterproof, light-fast and acid-free. That matters for scrapbook pages, keepsake cards or artwork meant to be displayed rather than filed away, since the ink resists fading and water damage over time. Because the pigment is opaque rather than translucent, it stays visible over black ink, dark cardstock and chalkboard-style surfaces where an ordinary gel pen would disappear. The tradeoff of an opaque, broad tip is that it needs a slightly wetter ink flow to stay solid, which is part of why the line can blob if pressed hard at the start of a stroke.

Handling and control

Retailers describe the Signo Broad barrel as sleek and comfortable, with an extra-control rubber grip meant to reduce hand fatigue during longer sessions, such as addressing a stack of envelopes in one sitting. Uni-Ball has sold variations of the Signo UM-153 line for years, and the brand carries a solid reputation among letterers and artists for consistent gel pen quality. Because the tip is broad, the first strokes on a page benefit from a light touch rather than pressing hard to force ink out, which is what causes the blobbing some letterers notice at the start of a word or flourish. Warming the tip up on scrap paper before starting the real project is a simple way to avoid that.

Pack size and value

This listing bundles two pens rather than the three-pen or ten-pen packs the same UM-153 line is sold in elsewhere, so it works best as a way to try the ink before committing to a bigger multipack, or as a backup pair kept alongside a primary pen. For a full wedding invitation batch or a large set of place cards, two pens can run out before the job is finished, since broad opaque white gel ink tends to get used up faster than fine-point ink on bold lettering. Buyers planning high-volume dark-paper work should budget for a second order or look at the larger multipacks sold under the same product line.

How it stacks up

Site rankings for white gel pens used in lettering and dark-paper work placed this Uni-Ball pen third of eight, behind the three-pen UM-153 pack and a Sakura Gelly Roll white set, but ahead of PANDAFLY, Arteza and Art-n-Fly options covered in the same roundup. That is solid company: Uni-Ball's broad opaque ink is a known quantity for envelope work and dark-card highlights, and the brand's build quality is a step up from some newer budget entrants in the category. Shoppers who like the ink but want a bigger supply should look at the pack of three or ten sold under the same Signo UM-153 line rather than switching brands.

Frequently asked questions