Writes on wet paper, upside-down, in temperatures as low as -4�F (20� C), and even in zero-gravity. Pressurized ink tube allows it to write smoothly in extreme conditions. Features uni-Super Ink? that helps prevent against check and document fraud. Textured rubber grip provides extra comfort and control. Semi-transparent barrel lets you monitor the ink supply. Pen Style: Retractable; Ink Color(s): Blue; Pen Type: Ballpoint; Point Size: 1 mm.