The product is a set of US Clad Proof Sets from the years 2000, 2001, 2003, 2006, 2008, and 2010. These sets contain coins that have not been circulated and have a proof strike type, minted in San Francisco by the U.S. Mint. The sets are from the United States and are ungraded. Each set includes coins with a clad composition, making them a valuable addition to any coin collection focusing on US coins.