This is something you did not get to see in the RollerBlitz art piece i did last month, i mention the air cannon in the description of the drawing but it was never seen. Now you will see it, this contraction is what fires the RollerBlitz balls into the track. the cannon is operated by the officials to fire the ball as soon the games of the quarter has begun. Where the ball ends up at on the track would be anyone's guess. However, The rules of game clearly regulate that the ball must be shot in the 4 middle points of the track away from the teams starting lines.