Four different color inks--perfect for recording data in different colors--with a single pen. Select the shade you want with a simple click of a button. Switches between black, blue, red, and green ink for maximum versatility. Retractable, so there's no cap to lose. Pen Type: Ballpoint; Special Ink Type: N/A; Pen Style: Retractable; Ink Color(s): Black, Blue, Green, Red.
