Signo 307 Gel Ink Rollerball – UMN-307

UMN-307 | Nib size: 0.7mm  

The uni-ball Signo 307 Rollerball is a gel pen that is retractable which prevents the nib from drying out and allows leak-free storage. The ink it uses is uni Super Ink that makes it waterproof, fraud resistant and permanent perfect for legal documents or for scrapbooking.

It’s rubberised grip makes it comfortable to use for long periods, and it’s newly developed nib makes it perfect for long essays, if you are a student the Signo 307 is a must.

This pen comes with a 0.7mm nib and is available in black, blue and red.


Works on



Retractable, Rubberised Grip