BMP21 Plus Series PermaSleeve Heat-Shrink Tubing. Designed for rigorous wire marking applications, PermaSleeve® PS Heat Shrink Polyolefin (B-342) sleeves combine speed, ease of use and permanence to create long lasting, high quality identification. Industrial Grade - Extreme temperature resistance, UV resistant, Chemical resistant, Fuel and Oil resistant, Self-extinguishing. Superior Aesthetics - Crisp, clear identification resistant to abrasions and fading. Certifications - UL Recognized to UL 224, RoHS Compliant to 2011/65/EU (Pass 2015/863), SAE AS23053/5 (Class 1), SAE AS-81531, MIL-STD-202. 3:1 heat shrinking sleeve designed for 22 - 16 gauge (diameter 0.046 - 0.11 inches, 1.2 - 2.8 mm). For material specific performance and properties, please refer to the Technical Data Sheet (TDS).