These colorful and fun theme chess sets are made of polystone which is a very hard stone-like material. The pieces are individually cast from molds and the level of intricate detail that can be achieved is amazing. The sculpture and design of each piece is done to accruately portray the subject in real life form. Pieces are masterfully handpainted with realistic colors to capture the essence of the subject and create a beautiful chess piece. These packages include a chess board and you will find a wide range of themes based on history from around the world.