pcs GR4 Typewriter Ribbon, 7M x 13MM Universal Typewriter Ribbon, Compatible with Most Typewriters, Typewriter Ribbon, Mechanical Writing Accessory

Black/Red: The kit includes two typewriter ribbons; each ribbon can easily switch between black and red ink depending on your writing needs.
Durable: The reel ribbon is made of high-density nylon for long-lasting resistance to abrasion and drying.
Easy Installation: This typewriter ribbon has a dual-reel system for quick and intuitive installation. Simply remove the old ribbon and place the new roll in its slot to continue typing.
Extended Use: Each roll of dual-color typewriter ribbon offers an extended length, allowing for prolonged use without frequent replacement.
Wide Compatibility: This typewriter ribbon is designed to be widely compatible with many classic models, including those that use the gr4 or dual-reel format.