CLEAR PRINTING – Bigger compatible IR-40T ribbons adopt high-density Nylon, combining with advanced ultrasonic welding technology, which makes the ribbon flatter and produces crisp & rich prints. LONG LASTING – Bigger IR40T ribbon features specially formulated inks with custom lubricants, which can be absorbed evenly by ribbon and keep good humidity, to ensure the highest quality compatible ribbon for your machine. FULLY COMPATIBLE – Bigger replacement for IR-40T calculator printer ribbon is adopted with precise specifications to allow for seamless installation into your printer. COMPATIBLE MODELS – Work for Canon, Casio, Sharp, Victor, Texas printers. More information please refer to the product picture. TIPS – Please confirm the model of your printer and ribbons.