Uniball UB157 Fine Point Roller Ball Pens - Box of 12 - Purple

What makes a uni-ball Vision Rollerball Pen so unique? It€s incredible ink! Each uni-ball rollerball pen has free flowing and fluid ink, similar to a fountain pen. You can actually feel the ball contacting the paper and see the ink flowing out of the pen as you write. And like all uni-ball pens, each roller pen features uni Super Ink which protects against water, fading and fraud. This pigment based rollerball ink contains particles that form an indelible bond in paper- it can€t be broken...ever. The best rollerball pen, they have archival quality ink that€s great for documenting and record keeping and is acid free. The larger particles deliver solid vivid colors every time you write.