The Uni-ball UMR-85E is the gel ink refill found in the Uni-ball Signo 307. It is the 0.5 mm version of the UMR-87E.
Prior to the release of the Signo 207 Plus+ in August 2020, the Signo 307 was the only pen that used the UMR-8*E family of inks. The 307 is sold in a 0.5 mm and 0.7 mm size. The 207 Plus+ was only released in 0.7 mm, but it will presumable be outfitted with the UMR-85E when a 0.5 mm pen is sold in this new line.
Uni-ball UMR-85E Gel Pen Refill Information
| Street Price | Check Price |
| Manufacturer | Uni |
| Pen Type | Rollerball / Gel |
| Rating | |
| Sizes | 0.5 mm |
| Ink Colors | Blue, Black, Red |
| Max Body Width | 5.9 mm |
| Acid-Free? | Yes |
| Erasable? | No |
| Pressurized? | No |
| Archival? | Yes |
| Fade Resistant? | Yes |
| Fraud Prevention? | Yes |
| Quick Drying? | No |
| Non-toxic? | No |
| Water-resistant? Waterproof? | Waterproof |
| Ink Base | Pigment |
| Refill Length (cm) | 11.2 cm |
| Tip Shape | Conical |
| Tip Material | Metal |
| Refill Standard | Pilot G2 |
| Quantity Sold | 1 |
| Similar Refills: |