Thermal Paper 3 1/8" x 230', 50 Rolls/case Our Thermal Paper Rolls are made with high quality German Thermal Paper KOEHLER, delivering clear images Width: 3 1/8"/80mm), Length: 230'(70m), Diameter: 2 11/16 (68.2 mm), Base: 48 gsm 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 pape