M21-500-595-YL Continuous Label Roll Cartridge, Compatible Grainger Part Number 22NA78, Compatible Mfr Part Number R6000, Label Color Yellow, Label Finish Gloss, Label Material Vinyl, Label Width 1/2 in, Material Properties Autoclavable, Printer Series Compatibility BMP ID Pal, BMP Lab Pal, BMP21, BMP21-Lab, BMP21-Plus, Ribbon Color Black, Roll Length 21 ft, Vial/Tube Size 1.5 ml, For Print Method Thermal Transfer, Material Series B-595, Maximum Service Temperature 176 Degrees F