The product is a lot of 21 Japanese Pokémon cards from the Gym Heroes set, featuring Gyarados and Psyduck. These vintage cards are Water-type, standard size, and illustrated by Ken Sugimori. Manufactured by Nintendo, these collectible cards are part of the Pokémon TCG game and have a regular finish. Perfect for collectors or fans of the Pokémon franchise, this lot offers a unique addition to any card collection.