【Precision Compatibility and Versatility】COSOB ribbons are specifically designed to replace universal models Porelon 11216 and GR24BR,ensuring perfect compatibility with Sharp EL-1197PIII and Canon MP11DX printing calculators.They also offer broad compatibility with popular models like the Casio FR-2650TM, Sharp EL-2196BL,Canon MP21DX and MP25DV,making them ideal supplies for offices,retail stores, and home use【Superior Print Quality】COSOB GR24 Calculator Ribbon features an advanced ink formula delivering crisp,smudge-resistant prints with long-lasting durability.Red and black text exhibit exceptional clarity and high contrast,ensuring financial records and documents maintain a clean,professional appearance【High Capacity & Outstanding Value】Each universal dual-spool calculator ribbon offers ample 5-meter (18-foot) print length for extended use.The 12-roll bundle delivers outstanding value,significantly reducing replacement frequency and per-use costs for high-volume users【Guaranteed Reliability】Constructed from high-density nylon and advanced manufacturing techniques,it minimizes wear on calculator print heads.Ensures smooth, jam-free printing while extending the lifespan of your valuable Sharp or Canon calculators【Individually Sealed Packaging】Each COSOB GR24BR calculator ribbon is packaged in a sealed plastic pouch,effectively shielding it from dust,moisture and damage to ensure like-new performance every time.The universal dual-spool design supports tool-free,quick installation,restoring functionality in seconds