3:1 heat shrinkable sleeve fit snugly around wires for maximum insulation protection and permanent identification Fade-resistant and smudge-proof for superior aesthetic appearance Cold resistant and flame-retardant with an operating temperature of -67°F to 275°F (-55°C to 135°C) All-in-one cartridge includes ribbon and label supply For use with BMP51 Label Printer, BMP53 Label Printer