Harsh environment ribbon designed for industrial “toughness”.Thermal printers suppliesBar codes and RFID tags are the key to efficiency in today fast-moving supply chains. A bad bar code or RFID tag can reduce efficiency and result in non-compliance fines, lagging production lines and delayed shipments. Genuine Printronix thermal transfer ribbons and media, working as a team and matched to the specific application requirements, ensure your thermal printer is ready for all mission critical applications.-Choice of Ribbon Lengths: -T5000r and SL5000r printers use extra long 625-meter (2,051-foot) length ribbons, longest in the industry for fewer changes, as well as standard 450-meter (1,476-foot) length. -T4M and SL4M printers use 450-meter (1,476-foot) length thermal ribbons.-Choice of Ribbon Widths: -Ranging from 2.36 inches to 8.66 inches. -Printronix offers the most popular widths in the industry.-Optimizes Print Head Life: Ribbons are specially back coated to provide maximum transfer of energy and extend the life of the Printronix T5000r and SL5000r print heads up to 4 times the industry standard. -Convenient Packaging: Packaged six (6) per box, each ribbon is shrink wrapped for maximum functional life.