Thermal Paper 2 1/4" x 85', 15 Rolls/Pack Our Thermal Paper Rolls are made with high quality German Thermal Paper KOEHLER, delivering clear images Width: 2 1/4 (57 mm), Length: 85 (26 m), Diameter: 1 29/32 (48.4 mm) Cardboard Core Size: 1/2 (12.7 mm) Inner Diameter, 5/8 (15.9 mm) Outer Diameter Fits most common Thermal Paper POS Printers 7+ years image durability at correct storage for thermal paper