Gorilla Supply 3Pk Universal Calculator Spool Black/Red GR24BR for Nukote BR80C 11216 R3027 Twin Ribbons Calculator Ink Ribbon Spool Mostly Fit for Casio Sharp Calculator, Universal Calculator Spool GR24BR BR80C 11216 R3027 Twin Ribbons Color: Black/Red, Twin Spool Round Diameter is 1-11/32" Indiv Sealed Fresh Pack replacement of Nukote BR80C