3:1 heat-shrinking wire sleeve is ideal for labeling in harsh environments and is resistant to chemicals, grease, oil and cleaning agents Flame-retardant and cold-resistant with an operating temperature of -67° F to 275° F (-55° C to 135° C) Meets SAE-AMS-DTL-23053/5C (Class 1), SAE-AS-81531, MIL-STD-202;RoHS Compliant;and UL Recognized PermaSleeve wire labels are ideal for electrical contractors, maintenance crews, and industrial professionals For use with BMP61 Label Printer, BMP71 Label Printer (with media adapter), BradyPrinter M611 Mobile Label Printer, TLS 2200 Thermal Labeling System, TLS-PC LINK Thermal Labeling System