Make a bold statement with uni-ball Impact Gel Pens! This gel pen produces thick, vibrant lines while the smooth grip provides added comfort and control. The metallic, bold colors write on both light and dark paper. Like all uni-ball pens, each gel pen features uni Super Ink which is water and fade resistant. This pigment based ink contains particles that form an indelible bond in paper- it can’t be broken…ever. Impact metallic gel pens deliver solid vivid colors every time you write.