3M Canada FP301X-1/2X48BK Heat Shrinkable Tubing, Thin Wall, Shrink Ratio: 2:1, 600 V, Inside Diameter: 1/2 IN Expanded X 1/4 IN Recovered, Thickness: 0.025 IN Recovered Wall, Length: 48 IN, Dielectric Strength: 900 V/MIL, Volume Resistivity: 1 X 10 15 OHM-CM, Continuous Operating Temperature: -55 To 135 DEG C, Minimum Shrink Temperature: 100 DEG C, Low Temperature Flexibility: No Cracking For 4 HR At -55 DEG C, Heat Shock: No Dripping, Flowing, Cracking, Passes Mandrel Wrap Test For 4 HR At 250 DEG C, Flammability: Self Extinguishing, Meets UL 224 All-Tubing Flame Test, Water Absorption: 0.2 PCT, Heat Aging: 175 PCT Elongation For 336 HR At 175 DEG C, Black, Flexible Polyolefin, Tensile Strength: 2400 PSI, 400 PCT Ultimate Elongation, Specific Gravity: 1.3 (Opaque), 0.93 (Clear), SAE-AMS-DTL-23053/5, Class 1, AMS-3636, AMS-3637, UL File No E-39100, CSA File No LR38227, For Lightweight Wire Harness Covering, Wire Marking, Wire Bundling, Component Packaging And Fire-Resistant Covering