Precut Label , 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 Matte, Label Height Not Applicable, Label Material Nylon Cloth, Label Width 1/2 in, Material Properties Autoclavable, Cryogenic, Halogen Free, Printer Series Compatibility BMP41, BMP51, BMP53, M511, Ribbon Color Black, Roll Length Not Applicable