Compatible Black and Red Calculator Ink Cartridges Designed for reliable performance and broad compatibility, these quality replacement ink cartridges ensure clear, professional printing for a wide range of printing calculators. Key Features: Compatible with many calculator models including Sharp EL1750V, EL1801V, Casio HR170RC Plus, HR300RC, HR200RC, HR100TM, HR150TM, Canon P23DH V, P23DHV3, P170DH3, Catiga CP30A, CP90A, and more. Replaces multiple ink cartridge models such as Casio IR40T, Canon CP13, Sharp EA772R, NuKote NR42, Porelon PR42, and many other Sharp, Canon, and Casio compatible cartridges. Two individual cartridges included, each blister packaged and sealed to maintain ink freshness and extend shelf life. Dualcolor black and red ink for easy differentiation between numbers, totals, and negative values. Benefits: Reduces downtime by ensuring you have compatible ink ready for replacement. Clear, contrast printing for accurate record keeping and easytoread results. Seamless fit in compatible calculators means no hassle during installation. Practical Uses: 1. Ideal for accounting professionals who need consistent, quality dualcolor prints for financial statements. 2. for small business owners using desktop printing calculators for invoices, receipts, and daily transaction tracking. 3. Useful in retail settings for printing sales totals and differentiating adjustments or negative amounts in red. Specifications: Color: Black and Red Packaging: Individually sealed, blister pack Compatibility: Wide range of Sharp, Casio, Canon, Catiga, and other brands as listed above Function: Replacement ink cartridges for printing calculators These cartridges are built to deliver dependable, professionalquality results for a variety of business and applications.