The Quill 7-11309 Universal Black/Red Nylon Calculator Ribbon is a high-quality product designed for use with various calculators. This sealed lot of 4 ribbons is compatible with a universal range of calculator brands, making it versatile for different models. The red color adds a pop of visual interest, while the durable nylon material ensures long-lasting performance. Made in China by the trusted brand Quill, these calculator ribbons are a reliable choice for all your calculation needs.