2 Color Ink Roller, Experience Clear Output With An Ink Ribbon That Utilizes Top Quality Ink Formulations To Deliver Sharp, Concise Printing Every Tim, Compatible With Victor, Aurora, Canon, Casio, Innovera, Sharp & TI Calculators, Easy To Install Design Makes Replacement Quick & Painless, Manufactured Under Stringent Quality Standards To Ensure Optimal Performance & Seamless Compatibility In Your Calculator.