The product is a collection of presidential dollar proofs from the years 2007, 2008, 2009, 2010, 2011, and 2015. Each proof set contains 4!coins and has a denomination of $1 and is part of the United States Presidential series. These coins are struck in proof quality, making them highly sought after by collectors for their pristine appearance. The set also includes a certificate of authenticity and is housed in a box for safekeeping. A great addition to any coin collection, especially for those interested in US presidential coins.