Discount Printer Ribbons is proud to offer the GRC E275-NTBR universal calculator ribbons. These General Ribbon Corporation E275-NTBR black and red calculator ribbons replace the Monroe P71. These ribbons are freshly manufactured and ready to be shipped to you today. These ribbons are designed to work in calculators, financial machines, bank machines, impact printers, retail equipment, POS point of sale machines, cash registers, and more.