Operate an amusement park right in your home as you build thrilling rides with K’nex 3-in-1 Classic Amusement Park Building Set! Create a majestic Ferris wheel that stands almost 3 feet tall, a heart-pounding boom ride, or an exciting swing ride. Improves children’s Steam (science, technology, engineering, arts, and math) capabilities by invoking their natural curiosity and creativity. Builders can create unique structures that actually move. Gender: Unisex.