Each set consists of 229 chunky, colorful pieces made with quality construction. These pieces include rods, connectors, eyes, and 36 wheels (10 of which are super-sized and 6 are truck wheels). The flexible pieces snap and bend into multiple configurations. Packaged in a large storage tub with snap-on lid. All 9 models can be constructed simultaneously by following the full color building cards. Ages 3 and up.