Heat Shrink Tubing Color Black I.D. Before Shrinking 2.000 I.D. After Shrinking 1.000 Length 6 Material Modified Elastomer Shrink Ratio 2:1 Wall Thickness After Shrinking 0.065 Temp. Range -67 Degrees to 392 Degrees F Max. Voltage 600V Standards AMS-DTL-23053/13 MIL-R-46846 Type III Class 1 RoHSFeatures:Material-Modified Elastomer Shrink Ratio-2 Wall Thickness After Shrinking-0.065" Temp. Range--67 Degrees to 392 Degrees F Max. Voltage-600V Standards-AMS-DTL-23053/13, MIL-R-46846, Type III, Class 1, RoHS 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