The product is a rare and highly sought after Pokemon 2021 Greninja Black Star Promo card from the Pokémon TCG. This specific card features the character Greninja with a Gold Star designation, making it a valuable addition to any collector's card collection. Part of the 2021 Pokemon SWSH Black Star Promo set, this Elite Trainer Box card is a limited edition item sure to be cherished by fans of the game.