Item Type: Perpetual Motion Asteroid Toy Material: Plastic, Metal Installed Size: Approx. 23 x 13 x 24.5cm / 9.1 x 5.1 x 9.6in Base Battery: 4 x 1.5V AA Battery(Not Included) Package List 1 x Base 6 x Accessories 1Smoothing Moving: Electric asteroid is like a 3D ball, moving smoothly and swaying from side to side, which is a beautiful sight on the desk. 2Reduce Pressure: Electric perpetual motion asteroid toy can effectively release stress and anxiety, which can also make you keep focused. 3Widely Use: Perpetual motion asteroid can be a relax toy at work, also for advertising display, kids learning, teaching toys, desktop decoration, etc. 4Easy Installation: Perpetual motion asteroid toy is easy to assemble and disassemble, which is also a perfect birthday gift for kids and friends. 5Metal Plastic: Perpetual motion astronomy toy made of plastic and metal materials, adopted rose red color design, which is sturdy and durable.