Features: 1. High class material and very good appearance. Made from quality plastic and metal. 2. Magnetic Swing: like a three-dimensional globe, hand gently moving about, it will not stop rocking from side to side up, on the desk will be a beautiful landscape. 3. Unique Design, stylish and innovative. The perfect desk decoration for home or office, toy or gifts. 4. Smooth action, beautiful finishes, and elegant design. It can be displayed anywhere: on the table, in bedrooms, living rooms, museums, or offices. 5. You39;ll find it hard to look away from this mesmerizing mechanical desk toy for stress relief, or teaching the laws of physics to kids. A simple spin at the top of the support sets the galaxy in motion. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Specification: Material: plasticmetal Size: 11*22cm Battery: 4 x AA batteriesnot included Package List: 1 x Perpetual Motion Planet Model