The product is a Bob St. Clair signed Wilson Authentic Duke NFL Football with the inscription "HOF 1990" and a COA from PSA DNA. This collectible item features an authentic signature from the Hall of Fame football player, making it a valuable piece for fans of the San Francisco 49ers and football enthusiasts. The football is an original and genuine product, perfect for displaying or using in a game. With the combination of the player's achievements and the unique autograph, this item would make a special addition to any sports memorabilia collection.