Brady bmp71 series permasleeve polyolefin shrink tubing, 3-8″dia x 1-3-4″w, wht, bm71-375-175-342 the b-342 polyolefin permasleeve material is a non-adhesive, heat-shrinking sleeve that fits around wires or cables for easy permanent identification. Heat shrinkable sleeve fit snugly around wires for maximum insulation protection and permanent identification. 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). Permasleeve wire labels are ideal for electrical contractors, maintenance crews and industrial professionals.