These super neat, interlocking brick sets are made to replicate the looks and movements of real carnival rides! When completed correctly, the finished product will actually operate with gears, shafts, and gear rafts. Once your set is assembled, add your own brick figures and buildings to create an operable mini fair ground. Rotate the cars, chairs, platforms, and wheels by winding a lever that is connected to the gears. This is a great beginner learning set for young engineers! Each kit includes 200 – 230 pieces and step-by-step instructions.