K'NEX lets you bring your favorite Nintendo game to life with the Mario Kart Building Sets. These sets includes all pieces you'll need, plus step-by-step instructions, to construct your very own character and kart from the game, then race him around for fun, action-packed and creative play. If that hasn't revved up your imagination, the box that these sets come in double as a launch ramp for another dose of fast and fun racing action! Set is perfect for builders ages 6 and up. Collect Mario, Shy Guy and Wario.