Writes as smoothly as a fountain pen without the mess. Features Uni-Super Ink™ specially-formulated to become trapped in paper helping prevent check washing and other document alteration. Archival quality and acid-free ink provides neat accurate lines. Attractive black matte finish with strong long lasting metal clip. Stainless steel tip. Special Ink Type: Dye-Based Pen Style: Stick Ink Color(s): Blue Pen Type: Roller Ball.Unit of Measure : Dozen