Quantity: 1Color:Silver Doubjoys rotating gyroscope is an educational toy whose mysterious power seems to overcome gravity and continue to attract young and old. The gyroscope is a great tool for teaching gyroscopic inertia and will allow for hours of creative performance. This versatile gyroscope can bring you hours of interesting discoveries. A gyroscope is a precision instrument capable of rotating like a gyroscope on a tiny pivot, apparently to overcome gravity and maintain its position in space.Starting method: Step 1: Pass the rope through the hole (you can put some a little more and wrap it around the rope) Step 2: Turn the flywheel to wrap the rope Step 3: Wind the rope Step 4: Pull the rope quickly (hold the gyroscope firmly) Step 5: The gyroscope is started successfully Tips: Please note that this gyroscope toy is manually activated, so the spinning time will not last very long. This product is intended for you to try out and develop different gameplay. You can try different challenging game modes provided by us in the picture or develop your own game. (Its normal if you fail at the beginning of the game, because you need patience and intelligence to play it.)If you need to specify the color, please send an email to inform us when placing the order. If you fail to send an email in time, silver will be sent by default!