PermaSleeveĀ® Wire marking sleeve. Made of B-342 polyolefin. Matte finish. 0.023 to 0.08 inch range of wire diameter. One-sided printable. 3-to-1 shrink ratio. 0.5 inch vertical repeat. Heat shrinkable sleeves fit snugly around wires for maximum insulation protection and permanent identification. Full-circle insulating sleeves meet the rigid insulating material requirements and physical properties of MIL-DTL-23053/5 Class 1, MIL-M-81531, MIL-STD-202F, METHOD 215 and UL224 when printed with R5000 dot matrix and R4300 and R4502S (for black sleeves only) thermal transfer ribbons. These fade resistant, smudge-proof sleeves. For 28 to 20 gauge wire. Compatible with Brady 1244, 1344, 2461, 3481,6441, 300X-Plus II, 360X-Plus II, 600X-Plus II, Tagus T200, T300, thermal transfer printers, sleeve and Datab Series, BradyPrinter PR Plus printers. Brady R6600 and R4300 series black ribbons are recommended for best thermal transfer print performance. Brady R6600 and R4300 series black ribbons are recommended for best thermal transfer print performance. Brady R4502S silver ribbon and the R6700 series white ribbons are recommended for thermal transfer printing of black markers. Brady R5000 Series high performance ribbon is recommended for best dot matrix print performance. Applicable for wire and cable marking, panel identification applications. 2500/package quantity/UOM. Available in white.