Uni-Ball 207 Gel (F, M, B) Refill
- Length: 111.1mm (4.375″)
- Manufacturer’s website: Uni-Ball
The Uni-Ball 207 is a gel refill that will fit some Uni-Ball pens and some pens that take a standard ceramic rollerball (RB) refill. This refill is available in a fine line width in black ink and a medium or broad line width in black or blue ink. No third party refill makers offer a direct substitute.