The 70 GSM Thermal POS Rolls are a special kind of paper that turns a different color when it is heated. It is used in machines like cash registers and credit card terminals. Thermal papers change color when exposed to heat. This happens because the paper is impregnated with a chemical. Thermal printers use this type of paper, as do some cheaper and lighter-weight devices such as adding machines, cash registers, and credit card terminals. The 70 GSM Thermal POS Rolls offered by us can be availed from us in different sizes and specifications to fulfill the requirement of the client.