California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Tungsten Electrode, AWS Classification EWTh-2, Chemical Composition Thoriated, Color Red, For Material Type Copper, Nickel, Stainless Steel, Titanium, Overall Diameter 0.0625 in, Overall Length 7 in, Welding Current Designation AC/DC, Welding Processes TIG Welding (GTAW), Electrode Material Tungsten, Features Provides a Stable Arc, The Electrodes Contain a Nominal 2 Wt- Percent of Thorium Oxide (ThO2) Throughout the Entire Length of the Rod, Used Generally on DC Negative or Straight Polarity. This item has been restricted from sale in the following state (s): []