Swing Max - Tennis Racquet Training Weight Train with resistance while hitting live balls Can be used for warmups, drills or while hitting with an opponent Develop strength, racquet speed and endurance Fits most standard and over-sized player racquets Use alone or with the Swing Sleeve or Swing Band to modify resistance levels Train with resistance while hitting live balls Can be used for warmups, drills or while hitting with an opponent Develop strength, racquet speed and endurance Fits most standard and over-sized player racquets Use alone or with the Swing Sleeve or Swing Band to modify resistance levels