Thermal receipt paper rolls for use in retail point-of-sale printers. 3,420 total feet of paper per package. 18 paper rolls per package. Thermal paper width is 3-1/8 inches. Paper roll length is 190 feet. Paper roll diameters average 2-1/2 inches. The inside diameter of the plastic core is ½ inch. These paper rolls are for use in many point of sale printer models, including several NCR, IBM, Epson, Bixolon, Samsung, Star and Ithaca brand models and more