Generic 3 1/8" X 230' THERMAL PAPER (50 ROLLS/CASE) by ROLLXY™The 3 1 8" x 230' thermal receipt paper roll is one of our bestsellers and the most common thermal POS (point of sale) receipt roll size. Thermal paper is made with a special heat sensitive coating that allows for inkless printing. 3 1 8" thermal rolls are a popular paper roll size for POS machines and credit card receipt printers. These rolls are designed for crisp, clear, durable print images and meets all thermal printer manufacturers requirements.