The product is a rare 2007 S Proof Presidential $1 Dollar 4 Coin Set graded by NGC as PF 70. This set includes coins featuring the images of George Washington, John Adams, Thomas Jefferson, and James Madison, all minted in San Francisco. Each coin is struck in proof condition, making them highly sought after by collectors due to their pristine appearance. This set is a valuable addition to any coin collection, showcasing important figures in American history.