Heavy Wall Shrink Tube, Polyolefin Material, Black, 2400 Psi Tensile Strength, 475 % Elongation At Break, 600 V, #3/0 Awg to 400 Kcmil Cable Size, 0.5 In;12.70 MM Recovered Diameter, 1.5 In Expanded Diameter, 3:1 Shrink Ratio, -67 °F Operating Temperature, +230 °F Operating Temperature, 48 In Length, 10 Yr Shelf Life, 0.94 LB/Ea