Mario Brothers: King Koopa Bowser 10-inch Plush Doll This is a 10-inch plush figure of Bowser from the classic video game series, Super Mario Brothers! Bowser is the leader and most powerful of the turtle-like Koopa race. Bowser is Mario's archenemy, usually kidnapping Princess Peach and attempting to conquer the Mushroom Kingdom. Have your own Bowser as you play your Mario Brothers games! Dimension & Measurement: Approx 10-inches