The product is a vintage 1977-78 Topps Denis Potvin #10 trading card featuring the New York Islanders player from the National Hockey League (NHL). Manufactured by Topps in the United States, this card is a part of the base set and is a valuable collectible for fans of ice hockey and sports trading cards. The card captures a piece of hockey history from the 1977-78 season, making it a sought-after item for collectors of vintage sports memorabilia.