Small step for Waboba, a giant bounce for mankind. The Moon's crazy, gravity-defying bounce is out of this world. It’s extremely addictive to play with on pavement, at a skate park, in a tunnel, in a gymnasium - everywhere there's a hard surface. Hyper Bouncy Ball Craters make a pop sound when it bounces Bounces out of this world Size: 63mm / 2.48 inch