The product is a rare Gengar Master Ball Reverse Holo card from the Japanese Pokémon TCG set, graded a perfect 10 by Professional Sports Authenticator (PSA). This collectible card features the psychic-type Pokémon, Gengar, illustrated by Tomokazu Komiya. With a holo finish and being part of the Sv2a series, this card is highly sought after by collectors and fans of the Pokémon franchise.