Product_description: ["'Heat Shrink Tubing, Material Polyolefin, Temp. Range -67 Degrees to 275 Degrees F, Shrink Ratio 2:1, Blue, Length 25 ft., Wire Range 16 to 12 AWG, I.D. Before Shrinking 0.250 In., I.D. After Shrinking 0.125 In., Wall Thickness After Shrinking 0.025 In., Max. Voltage 600V, Features Flexible, Flame-Retardant, Thin Wall, General Purpose, Standards UL Recognized to Standard 224