I am a small store, and I don't offer returns on tested working or New items. I can't afford to pay shipping 2 times (refund what you paid and the return shipping label) just because you changed your mind. Sold as is. This is a Gunk Original 15 Oz. Aerosol Engine Cleaner/Degreaser with manufacturer part number EB1. It is made in the United States and comes in a 15oz. size. The product is banned inf certain states (CA, DE, MD, NH, UT) and contains a chemical warning for California residents.