"White, top-coated, higher sensitivity sheet, darkest imaging, 2.5in x 4in direct thermal die-cut label with gap, and designed for graphics and logo imaging. This material has excellent chemical and environmental resistance and is good for barcode applications and printouts that require a premium look. Up to 20 years archive life. 2.28in outer diameter, 0.75in core, 115 labels per roll, 36 rolls per case. For use with RuggedJet 3 and RuggedJet 4 Printer Series. Brother International Certified." · Label Supply