The product is a 2021 Pokémon TCG Black Star Promo card featuring Greninja Gold Star from the Celebrations set. This sealed card is highly sought after by collectors due to its rarity and special promotional status. As a part of the SWSH144 series, this Greninja card is a valuable addition to any Pokémon card collection, especially for fans of the Pokémon TCG game. With its unique design and limited availability, this card is a must-have for collectors looking to enhance their collection with a special and iconic Pokémon card.