Uni-ball Signo Impact 207 Refills, Black Gel Ink, 1.0mm Bold Point, 6 Packs of Refills 65808 with 1 Pen These refills are for the Uni-Ball Signo Impact 207 Non-Retractable pen. They will not fit in the Uni-Ball Signo 207 Impact RT Retractable pen. 6 packs 65808 UniBall Signo Impact 207 Black gel ink 1.0 mm refills (12 Refills Total) plus 1 Free 65800 Black Gel Ink Pen Black Uni Super Ink prevents check and document fraud. Rollerball pen and refills delivers an ultra-smooth ink flow from a 1.0mm bold point tip. Contemporary barrel design features an extra-control rubber grip for comfort and control in writing.