The product is a 2017 Stanley Cup Finals ticket stub autographed by hockey player Sidney Crosby of the Pittsburgh Penguins. The autograph has been authenticated by Professional Sports Authenticator (PSA), making it a valuable and authentic collectible for fans of Crosby and the Penguins. This memorabilia from the 2017 NHL Stanley Cup Finals is a unique and rare piece that showcases one of the most iconic players in the sport.