An uncoated direct thermal 80 micron paper tag stock that produces high-contrast black images when used with Zebra desktop and mobile printers. This material has a 5-year lifespan for indoor document archiving under recommended conditions. Most commonly used for point-of-sale receipts, as well as parking enforcement and route accounting. Compatible Printers: QL 420. - Outer Diameter - 0.75" (19.05 mm). - Inner Core Diameter - 0.75" (19.05 mm).