IR40T Black/Red Calculator Ink Roller Cartridge | Replaces Casio IR-40T, Canon CP-13, Sharp EA-772R, Nu-Kote NR-42, Porelon PR-42 | Compatible with many SHARP, VICTOR, ADLER-ROYAL, CANON, CASIO, AURORA, CITIZEN, OLIVETTI, TI Calculators | Popular models include Casio HR-300RC, HR-200RC, HR-170RC, HR-100TM, HR-150TM, Canon P23-DH V and P23-DHV-3, Sharp EL-1750V and EL-1801V, TI 5045 SV | 3 individually sealed cartridges included