LabelMore 2 1/4 Thermal Paper 50 Rolls for Credit Card - Thermal Receipt Paper, Credit Card Paper Rolls Thermal, Cash Register Roll, Premium Pos Thermal Printer PaperPaper Width: 2 1/4" (57mm)Paper Length: 50' (15.3m)Roll Core: 1/2" (12.7mm)Diameter: 1 7/16 " (37mm)All of our 2-1/4" x 85' thermal receipt paper rolls are BPA free.Thermal paper is made with a special heat-sensitive coating that allows for inkless printing.When heat (from a thermal paper printer) is applied to the coating, the result is a sharp black image without the need for ink or ribbons.Labelmore is a professional seller specializing in the production of various shipping labels. We have been focusing on the production of labels for many years. Our products are sold all over the world, and our label services are used by all industries. Our company will focus on customer concern and provide you with sincere and fast qualified consumables and services with strict quality management system. For many years, it has been committed to the cashier and identification system of supermarket, self selected hypermarket, warehousing business, and the supporting services of factory production line code identification. It has produced consumables such as price plate printing, electronic scale thermal paper, commodity identification bar code and bar code paper, cashier paper, code printing paper in a large-scale manner.