🖋️ Write sharp, write smart — the pen that means business.
The uni-ball Signo 307 is a retractable gel ink pen featuring an ultra micro 0.38mm tip for precise writing. Its vibrant blue ink dries quickly to prevent smudging, complemented by a textured rubber grip for comfortable, extended use. Sold in a convenient value pack of 5, it’s designed for professionals who demand reliability and style in every stroke.
| Manufacturer | Uni-ball |
| Brand | uni-ball |
| Item Weight | 0.634 ounces |
| Product Dimensions | 5.43 x 2.36 x 0.63 inches |
| Item model number | SG_B06Y3WFXGD_US |
| Is Discontinued By Manufacturer | No |
| Color | Blue |
| Closure | Retractable |
| Grip Type | Textured rubber |
| Number of Items | 5 |
| Size | 1 Count (Pack of 5) |
| Point Type | Ultra Micro |
| Line Size | 0.38 Millimeters |
| Ink Color | Blue |
| Manufacturer Part Number | UMN30738.33*5 |
F**T
Nice Pens
Nice pens. A shame that I ended up losing most of them by now though.
H**R
Favorite pen?
Absolutely love this pen size! Good quality, no smudge, will be ordering again.
L**R
Fine point to the max
Super Fine point pen. I love them and use them daily as work. The pen writes very easy and smoothly.
G**D
NOTICE: THIS IS NOT Uni's 307 Dark Blue Ink, It's 207 Light Blue
I was expecting the cobalt blue ink used in the 307 Skip Free and UM151 stick Pens, and this is not it. Its the standard 207 light blue. Uni has the best writing retractable 0.38 point but every other brand offers that cobalt blue ink in 0.38. Uni You FAILED us. I'll have to settle for the navy blue in 0.38 for now, and I am disappointed but at least I can get the navy refills on Amazon.
B**S
First time switching out of 0.7 G2s
I write pretty hard which is why I've opted for 0.7 mm most of my life. The G2 refills are easily accessible with many colors to choose from.The reviews on the ultra micro 307s were stellar, so I said why not. I just finished my first pen and I think I am sold. I am back looking for more of these. They're not scratchy. Write smoothly every time. The finer tips help me fit more writing onto a page than 0.7 mms would allow. I never thought it would work out for me. I'm a happy journaler!
D**H
Great pen for Bible
I love how thin this pen is and it works great in my Bible.
G**G
Perfect for writing on thin paper!
DO NOT PEEL OFF THE LITTLE PLASTIC BALL from the tip of these pens!After much searching, I read that the "safest" pens for underlining and writing notes in my bible are pens that have a tip that is .38mm.Literally no bleedthrough or smudging.
J**C
Awesome pen
These are by far my favorite pens. I like the super fine tip. Doesn’t smear. Very smooth writing. Perfect for writing checks, even though I don’t write too many of them anymore.
Trustpilot
4 days ago
2 months ago
