Label Printer Ribbon , Compatible Grainger Part Number 40AW42, 40AW43, Compatible Mfr Part Number BBP35, BBP37, Printer Series Compatibility BBP35, BBP37, Ribbon Color Black/Blue, Ribbon Format Ribbon in Printer Specific , Ribbon Length 200 ft, Ribbon Width 4 5/16 in, Ribbon Series R10000, Ribbon Panel Length 8 in, Number of Panel Sets 100, Ribbon Formulation Resin, Product Type Two-Color Thermal Transfer Ribbon, Resistance Properties Scratch-, Solvent- WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -