Precut Label Roll , Compatible Grainger Part Number 20XX01, 20XX02, 20XX04, 21U174, 21U176, 21U177, 21U178, 21U179, 21U180, 29YJ26, 810HX3, 810HX4, Compatible Mfr Part Number BMP41, BMP51, BMP53, M511, Label Color White, Label Finish Gloss, Label Height Not Applicable, Label Material Vinyl, Label Width 1/2 in, Material Properties Not Applicable, Printer Series Compatibility BMP41, BMP51, BMP53, M511, Ribbon Color Black, Roll Length 25 ft, Vial/Tube Size Not Applicable