The product is a lot of three United States Mint uncirculated coin sets, specifically from the years 1987-1989 and 1993. These sets include coins that have not been circulated and have a proof strike type, minted in San Francisco. They are certified by the U.S. Mint, adding value and authenticity to the sets. Ideal for collectors, these sets offer a comprehensive look at the United States coinage from the specified years.