Thin Wall Shrink Tube, Polyolefin Material, Black, 2400 Psi Tensile Strength, 400 % Elongation At Break, 600 V, 1 In Cable Size, 0.5 In;12.70 MM Recovered Diameter, 1 In Expanded Diameter, 2:1 Shrink Ratio, -67 °F Operating Temperature, +275 °F Operating Temperature, 4 FT Length, 0.035 In Thickness, 10 Yr Shelf Life, 0.31 LB/Ea