BOEDCN 3 Pack 11216 Compatible Ribbon Replacement for Porelon 11216 Universal Twin Spool Calculator Ribbon 11210 GR24 use with Sharp el-1197piii Adding Machine Ribbons Universal Nukote BR80c - B/R Twin spool black and red calculator ribbons provides vivid and consistent black and red color in addition to exceptional light fastness and durable impressions.