PullBall Water Polo Training Drills Waterpolo, Football, Volleyball Practice for Athlete to Increase Stamina and Better Posture - Any Sport, Any Ball Type Train without ever needing a partner - PullBall is the only partner you need Pull Ball is a training tool that's intended for coaches and for serious athletes who are committed to performing at their peak levels. Pullball is a device that's simple yet ingenious in its design. It'simple, attach a resistance loop band to one of the balls used in your sport (basketball, football, water polo) and get started with it right away. Drills  Practice  Exercise  Training  Workout  Football  Basketball  Water Polo  Volleyball Ball is not included