its a official sport called cycle ballhttp://en.wikipedia.org/wiki/Cycle_ballthere is a championship since 1929..here's another videohttp://www.youtube.com/watch?v=mzH0mvr7X2A Abusive comment hidden. (Show it anyway.)
http://en.wikipedia.org/wiki/Cycle_ball
there is a championship since 1929..
here's another video
http://www.youtube.com/watch?v=mzH0mvr7X2A