3:1 heat-shrinking wire sleeve is ideal for labeling in harsh environments and is resistant to chemicals, grease, oil and cleaning agents Polyolefin wire marking sleeves have a smudge-proof finish and print in black text on a white background PermaSleeve labels provide wire identification that combines speed, ease of use and permanence for long-lasting, high quality identification Cold resistant and flame-retardant with an operating temperature of -67° F to 275° F (-55° C to 135° C) For use with BMP41 Label Printer, BMP51 Label Printer, BMP53 Label Printer