Thick, vibrant lines allow you to make a bold statement every time you write Features uni Super Ink(TM) specially formulated to help prevent check fraud. Ink is designed to become trapped in paper, helping prevent criminal check washing and other document alteration. Uni-Ball Pens part of a large selection of office supplies. uni-ball(R) 207(TM) Impact(TM) RT Gel Pen Refills, Bold Point, 1.0mm, Black, Pack Of 2 is one of many Pen Refills available through Office Depot. Made by Uni-Ball.