Soft rubber grip offers supreme comfort while writing Grip also features a dimpled texture for better traction and control. Ink is designed to become trapped in paper, helping prevent criminal check washing and other document alteration. Features uni Super Ink(TM) specially formulated to help prevent check fraud. A generous quantity of liquid ink is held in the cotton reservoir and released with each stroke for an exceptionally smooth write - with no hiccups or ink puddles. Cotton reservoir delivers a steady ink flow. Acid-free ink for archival documenting and record keeping. Nonrefillable. Uni-ball Pens part of a large selection of office supplies. uni-ball(R) Grip Rollerball Pens, 0.7mm, Fine Point, Black Barrel, Black Ink, Pack Of 12 is one of many Rollerball Liquid Ink Pens available through Office Depot. Made by Uni-ball.