Ariic&reg; 2X 57mmX47mm 20M Thermal Printer Paper POS Cash Register 10 rolls New White 2 Double line 5000 Labels for MX-6600 Price Gun Tag 10 digits 10 Rolls They are the refill tags for two lines price gun like MX-6600 or similar It can be used for marking the type of various products and price directly. Using environmental protection ink and paper, and no damage to human body. It plays a role in advertising and promoting.