A set of 5 Big, 4" diameter, 6-sided rubber ball that helps in tuning reaction time and hand-eye coordination. When you hit the ball to the ground, the ball bounces in an unpredictable way. The idea is to try to chase the ball after the bounce. Specially useful for goal-keepers and it makes training a fun activity. Comes with a free attractive carry bag for easy handling. of Training Accessories. For our complete range please visit us at www.cintz.com