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This is a brand new Smithsonian Perpetual Motion Machine STEM kit, still in its original, packaging. This kit allows you to build your own "perpetual" motion machine and learn about the properties of physics, powered by a magnetic field. It includes all necessary components and instructions, plus a color poster. Designed for ages 8 and up, it requires adult supervision.

Perfect for budding scientists or anyone interested in physics, this kit offers an engaging and educational experience. The item is in pristine condition, ready for assembly and exploration.