Printronix 41U1680-PTX Twin Spool Ribbon - 6 Pack Black Thermal Transfer Ribbons for Label Printers | Ideal for Warehouse, Shipping & Inventory Labeling

4 Pairs Universal Typewriter Ribbon Twin Spool Replacement Pack - Compatible with Most Typewriters (Black) | Perfect for Office, Home, and Vintage Typewriter Enthusiasts

6 Pack Universal Typewriter Ribbon Twin Spool - Black Ink Replacement Ribbon for Most Typewriters | Perfect for Vintage Typewriters, Offices & Writers

Sharp Electronic Calculator Ribbon Twin Spool - Black & Red Ink Compatible with All Twin Spool Models - Perfect for Office, School & Financial Calculations