Label Printer Ribbon, Compatible Grainger Part Number 22NA72, Compatible Mfr Part Number BBP72-34L, BBP81, Material Properties Halogen Free, Printer Series Compatibility BBP72, BBP81, i7100, THT 3 In. Core Printers, Ribbon Color Black, Ribbon Format Ribbon on Open Core, Ribbon Length 984 ft, Ribbon Width 1 9/16 in, Ribbon Series R6000, Ribbon Formulation Resin, Core Diameter 1 in, Product Type Single Color Thermal Transfer Ribbon