Heavy Wall Shrink Tube, Polyolefin Material, Black, 2400 Psi Tensile Strength, 475 % Elongation At Break, 600 V, #12 to #6 Awg Cable Size, 0.15 In;3.8 MM Recovered Diameter, 0.4 In Expanded Diameter, 3:1 Shrink Ratio, -67 °F Operating Temperature, +230 °F Operating Temperature, 6 In Length, 10 Yr Shelf Life, 0.03 LB/Ea