Uni-ball Signo 207 Impact Stick Gel Pen, 4 Black Pens, 1.0mm Bold Point Gel Pens, Smooth Writing, Archival-Quality Ink, Acid-Free, Superior Comfort. Nothing Else Like It - Uni's proprietary ink formulation is archival quality, our long-lasting inks are high quality and immune to fading, fraud, and water; The obvious choice for professionals, amateurs, and everyone in between.
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