The Nickel Plating Solution by nickelplatingpro is a professional-grade electroplating supply designed for achieving a superior metal finish. This 1 gallon mix solution is formulated in the United States and is ideal for industries that require high-quality nickel plating. Please note that this product carries a California Prop 65 Warning due to the presence of nickel (metallic), which is known to the state to cause cancer. It is essential to follow safety guidelines and seek additional information on the product before use.