Vision Rollerball Pen features an innovative system that regulates a steady flow of waterproof ink to the point for consistent smoothness & color intensity. Uni Super Ink helps prevent check & document fraud. Solid, stainless steel point is quiet, responsive & won't bend under pressure. Uncapped pen offers a visible ink supply. Ink is acid-free, fade-resistant & water-resistant. Nonrefillable. More from the Manufacturer