The product is a block of two used stamps from China, featuring historical significance related to the Sun Yat-sen Mausoleum. The stamps have denominations of 1 Million Yuan and 500,000 Yuan, reflecting the hyperinflation period in China in 1949. These stamps are uncertified and ungraded, making them a unique and collectible item for stamp enthusiasts and collectors interested in Asian philately, particularly Chinese history and currency.