The product is a lot of 2 MotorMedic 12 oz. Lead Substitute M5012, made in the United States. It comes with a California Prop 65 Warning, indicating that it contains a chemical known to cause cancer. This fuel additive and treatment is designed to improve the performance of vehicles, particularly in terms of reducing emissions and increasing engine efficiency. Its size of 12 oz makes it convenient for use in various automotive applications.