The product is a Japanese Pokémon TCG card from the Gym Heroes set, featuring Brock's Diglett. This vintage card, manufactured by Nintendo in 1996, is a common Ground-type Pokémon card with a standard size and regular finish. Illustrated by Ken Sugimori, it depicts the character Brock and his Diglett in a basic stage, making it a sought-after collectible for Pokémon TCG enthusiasts and fans of both characters.