The Tachikara® TB-18 The Setter ™ is a ball especially designed for practicing setting skills. It s a weighted volleyball that was created to help setters build hand and finger strength. While the setter is the prime target for this ball every player should know how to set the ball with confidence and skill. Weighs 15.7-17.5 oz. Has a Sensi-tec® microfiber composite cover; for indoor use only. Just as you would expect from Tachikara the TB-18 The Setter will help your setter and other players build strength and stamina.