Porelon 11572 Citizen GSX120D/140 Compatible Nylon Printer Ribbon, Replaces Manufacturers Part #'s CAY0810-01A and AH379545-0, 1 Pack Vivid and consistent color - Black, Exceptional light fastness and durable impressions Replaces manufacturers part #'s CAY0810-01A and AH379545-0 Compatible nylon printer ribbon. This product has been designed and manufactured to operate the original equipment identified, and will not void your equipment warranty. One year (12 months) warranty from date of purchase