The product is a Larry Bird signed Boston Celtics All-Star Funko Pop #139, authenticated by Heritage Authentication Services. This collectible item features an authentic signature from Larry Bird himself, making it a valuable piece for basketball fans and collectors alike. The autograph adds a unique touch to the product, ensuring its authenticity and originality. This item is a must-have for any Celtics or NBA memorabilia enthusiast looking to add a piece of history to their collection.