The Vintage Mewtwo Strikes Back Topps Pokemon Cards Incomplete Set includes a collection of Pokemon cards from the 1999 Pokemon TCG set featuring the character Mewtwo. These standard-sized cards are made of card stock with a holographic finish, making them highly sought after by collectors for their rarity and nostalgic value. The set is missing a few cards but still holds value for fans of the Pokemon franchise and collectors of vintage memorabilia.