Sanford Ink Corporation : Rollerball Pen, Nonrefillable, 0.7 mm, Blue Vision Rollerball Pen features an innovative system that regulates a steady flow of waterproof ink to the point for consistent smoothness and color intensity. Solid, stainless steel point is quiet, responsive and won"t bend under pressure. Uncapped pen offers a visible ink supply. Ink is acid-free, fade-resistant and water-resistant. Nonrefillable.:Manufactured by.: Sanford Ink Corporation