The product is a 2017 U. Mint Limited Edition Silver Proof Set that includes coins struck in proof condition at the San Francisco Mint. The set includes a Certificate of Authenticity (COA) and comes in its original box with a slip cover. This set is a highly collectible item for coin enthusiasts, featuring a limited edition design and composed of silver. It is a valuable addition to any collection of US coins, showcasing the craftsmanship and quality of the US Mint.