This model comes complete with 305 parts for you to assemble to create your masterpiece. The kit features sustainable, high-quality wood that comes pre-cut and ready to build without any additional glues or chemicals needed so you can jump straight into the fun and get started right away. The carousel's mechanism is powered simply with rubber bands and gears which are visible to the eye, creating a display with extra visual interest as you view what powers this mini marvel. It's simple to get the model moving: just a quick turn of the key located under the base provides the rubber band tension needed to get the gears turning. Takes approx 7 Hours to build.