Features . The Asteroid - Perpetual Motion is a piece of revolving art for your desk.. This kinetic sculpture has several brightly colored metallic balls that rotate like a ferris wheel.. It will keep you and anybody else who watches it mesmerized for hours.. Once started it keeps going and going until you stop it.. This classic desk toy makes a great office decoration or executive gift.. Pick one up for yourself or for anyone in need of a little desktop entertainment.. Item Weight - 11 oz.. Dimension - 4 L x 7 W x 7 H in.