The product is a Pokémon trading card from the Diamond & Pearl Mysterious Treasures set, featuring the character Dewgong. The card is numbered 45 out of 123 in the set and is classified as a Pokémon card. This collectible card game item is a part of the Pokémon TCG and would be a sought-after addition for fans and collectors looking to expand their card collection with a specific Dewgong card from this particular set.