The product is a 2001 Silver Proof Set from the U.S. Mint, which includes uncirculated coins in denominations of 1 cent, 5 cents, 10 cents, 25 cents, 50 cents, and $1. The coins are made of silver, copper-nickel, copper-plated zinc, and manganese-brass. This set was struck as proof coins at the San Francisco Mint and comes in original government packaging with a Certificate of Authenticity (COA).