Wooden Perpetual Motion Machine Desk Toy - Science Physics Gadget for Home & Office Decor, Non-Stop Rolling Ball Kinetic Art - Perfect Stress Reliever & Educational Gift for Adults

Perpetual motion desk toy Suitable for both young and old: Applicable to psychology, relieve work fatigue and stress. It could be a great desk toy for an adult office. It's also perfect for outer space science themed classes or office decor, or anyone with a passion for science or demonstrating the laws of physics in science class, a great teaching tool for explaining eternal physics. .Perfect for birthday, holiday, christmas, father's day gift. Pre-Kindergarten Toys Funny and useful for those kids who want to learn more about magnet and physics. Desk toys for office for adults Perpetual motion machine is produced with high quality material and elegant workcraft. Very high quality Exotic Wood material, with world-class workmanship and finish. Perpetual Motion Simulator This is a Perpetual Motion Simulator, it runs on battery power. The battery is 18650 flat-top rechargeable Li-ion type. This machine uses an electromagnet to drive the ball. Read more Perpetual motion device Each ball will fall back exactly to the starting point. If the received perpetual motion ball does not fall back to the starting point as in the video, but falls to the ground, we promise a full money reback to you, no need to return the goods, the goods are free to you. Legal Disclaimer I am the inventor of this Marble Machine, all of the Video/photos on this product are mine. Many others store copy my design to sell cheap knock-off models. Be careful, read the reviews of those products carefully before you purchase. If you are not satisfied with our products or have any questions and concerns, please tell us within 24 hours, we will provide you with the best as soon as possible Customer support and service assistance. Read more

【Perpetual Motion Simulator】Touch the test switch premium electromagnetic induction version, noiseless, no motor. Genuine perpetual motion, electromagnetic induction version (no motor). This is the high performance version, not simply a decorative item. Each ball will fall back exactly to the starting point

【Physics Toy Size】Very high quality Exotic Wood material ( Solid hardwood:Pine + Oak), with world-class workmanship and finish. Weight: 820g (including 5 balls) Size: base 21.5*10.5*18cm,8.46*4.13*7.08in (length X width X height).

【Amazing Physics Fun Toys】When I first saw videos of this piece of kinetic art I thought the effect was due to video editing, but in fact the base contains a power source and very clever mechanism.No, it's not magic or something against the laws of physics. There's a hidden magnetic system under the device, secured with screws, and rechargeable with a USB cable (included in the package).Runtime: 5-6 hours (continuous - when the Battery is fully charged).

【Service Guarantee】The product and the video match, if the product received is not the same as the video can cycle rotation, we promise to give it away for free, and a full refund.If the received product does not match the actual product, we promise a full refund.

Gift：It is a nice gift, we can send it to our friends,young,old, children, adult,boys ,girls,teacher,father,colleagues,family.Sleek desk toy for adults and children. Quite, relaxing, suitable as Science Toy or Decorative. An exquisite decoration that can be placed in house,school or office.