Heat Shrink Tubing Color Black I.D. Before Shrinking 2.000 I.D. After Shrinking 1.000 Length 6 Material Modified Chlorinated Polyolefin Shrink Ratio 2:1 Wall Thickness After Shrinking 0.110 Temp. Range -94 Degrees to 250 Degrees F Max. Voltage 600V Standards AMS-DTL-23053/1 Class 1 and Class 2 AMS 3623 MIL-R-46846 Type 1 Class 1Features:Material-Modified Chlorinated Polyolefin Shrink Ratio-2 Wall Thickness After Shrinking-0.110" Temp. Range--94 Degrees to 250 Degrees F Max. Voltage-600V Standards-AMS-DTL-23053/1 Class 1 and Class 2, AMS 3623, MIL-R-46846, Type 1, Class 1 WARNING: California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm.California proposition 65 warning