Produces thick, vibrant lines and features an innovative, spring loaded clip that automatically retracts when clipped onto your pocket protecting them from ink stains. Features uni-Super Ink? that helps prevent against check and document fraud. Pigment-based ink contains particles that form an indelible bond which can"t be broken. Special Ink Type: Gel; Pen Style: Retractable; Ink Color(s): Black; Pen Type: Roller Ball.