I Series 5 panel (YMCKO) Color Ribbon, 200 Images/roll. Environmentally friendly design. The ribbon is used to print in a variety of colors: yellow (Y), magenta (M), cyan (C), and black (K). The remaining overlay (O) provides an extra layer of protection for the card. This ribbon is used to print color on one or both sides of a card. This ribbon is compatible with the P100i, P110i, and P120i Printers.