The Staples Thermal Calculator Paper Rolls are designed for use in calculator machines, with a width of 2 1/4 inches or 57mm. This 3-pack of thermal paper rolls is compatible with various calculator models and offers a length of 165 feet or 50 meters, ensuring a long supply for your business or personal use. With the trusted brand of Staples, you can rely on these paper rolls for accurate and efficient calculations. Ideal for retail settings, these thermal paper rolls provide a reliable and convenient solution for managing transactions.