Bar codes and RFID tags are the key to efficiency in today’s 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 length ribbons. longest in the industry for fewer changes. as well as standard 450-meter length. T4M and SL4M printers use 450-meter length thermal ribbons.- 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.