The product is a 2021 Joe Montana San Francisco 49ers FOTL Green Swirl SuperBowl XVI Mosaic trading card numbered #291. This sports trading card features the legendary player from the National Football League (NFL) and commemorates his achievements in the Super Bowl. Manufactured by Mosaic Football, this card is a limited print run of only 11, making it a highly sought-after collectible for football fans and trading card enthusiasts alike.