The Pokémon TCG First Partner Illustration Collection Box Series 1 is a limited edition collectible card game product featuring iconic characters like Bulbasaur, Charmander, and Squirtle from the Mega Evolutions set. This booster box contains 23 standard-sized cards made of card stock and illustrated by The Pokémon Company Art-team. It is sealed and manufactured by The Pokémon Company in the United States, showcasing artwork by Ryo Ueda and signed by Professional Sports Authenticator (PSA). The box is a must-have for fans of the Pokémon franchise and collectors of Pokémon TCG cards.