POS Rolls N1A3295 2-1/4" x 50' Thermal Receipt Paper, Carton of 50 Rolls. Thermal paper rolls are made with top-quality premium white thermal paper and deliver crisp, clear images. Inner dimension of the core measures 7/16" in diameter. 1-ply white rolls have a 94 lumen brightness rating and are 48 GSM paper thickness. Bright color produces crisp, clear images for legible results. Smooth, high-quality construction helps prevent jams for hassle-free use. Easy-to-install design allows fast, simple replacement of depleted roll. Works in all thermal receipt printers requiring this size roll.