The Pokemon XY: Steam Siege Booster Box is a collectible card game product manufactured by The Pokemon Company in 2016. This factory-sealed box contains standard-sized English language cards from the XY - Steam Siege set of the Pokemon Trading Card Game. Each booster box does not come with autographed cards, and is designed for basic stage Pokemon card collectors and players looking to expand their collection with new cards. With a focus on Pokemon TCG gameplay, this product offers a chance to uncover rare and valuable cards to enhance your deck and collection.