The Magicard NEO 250 shot color film, black on reverse, is a specialized ribbon designed for use with Magicard NEO series card printers. It's a YMCKO (Yellow, Magenta, Cyan, Black, Overlay) color ribbon that allows for full-color printing on the front of ID cards. The "black on reverse" aspect indicates that the black panel of the ribbon is also used to print monochrome (black) text, barcodes, or simple graphics on the back side of the card in a single pass. This dual-sided printing capability makes it efficient for creating professional, secure ID cards with information on both sides.