The K"NEX Mario Kart Wii Mario Circuit bundle has 511 pieces to build fictional Mario, Luigi and Yoshi characters. Your child will love to play with his or her favorite racing characters as they speed on their bikes and karts. This race track set has 30 pieces of track to create twisting, turning layouts. The Mario Kart building set focuses on improving your childs knowledge of shapes and colors. It comes with an instruction manual for assembly. For children ages 6 years and up.