Biobor EB is a 16 oz gasoline treatment designed by Hammonds to act as an antioxidant, seal conditioner, and corrosion inhibitor. Manufactured in the United States, this product helps to improve fuel performance and reduce engine corrosion. With a pack of 1 unit, this fuel additive is effective in increasing fuel efficiency and preventing damage to engine components. The product comes with a California Prop 65 Warning due to its potential for cancer risk associated with its use.