Perpetual Motion Desk Toy Interesting Relaxing Desktop Decor Gift Supply

Feature: \n 1. Due to air resistance and friction, the toy only lasts for 2\u20113 minutes of perpetual motion, and the swing slows down as time goes by, and finally stops\n2. Will be in a balanced state, just like a tumbler, as a very interesting toy, the desk toy can show a lot of unexpected movement states\n3. For children who want to learn more about the laws of conservation of physics, the desk toy is an useful device that can provide and entertainment\n4. A great desktop decoration and gift, for family or friends, and can also be used for teaching, very easy to install\n5. Suitable for various places such as home or office, not only can show the pendulum movement, but also help to learn the conservation laws in physics \n\nSpecification: \n\nItem Type: Perpetual Motion Desk Toy\nProduct Material: Aluminum + Iron\nDiameter of Bottom Circle: Approx. 5.8cm/2.3in\nSupport Height: Approx. 12cm/4.7in\nBracket Width: Approx. 3cm/1.2in\nProduct Use: Suitable for Desktop: