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The "Secrete Weapon". Used by the world's fastest jumpers. A valuable tool unknown to many competition jumpers. Speed Training Balls are used to increase their ability to go faster with greater endurance. The perfect way to increase arm strength and hand coordination for the sport of jump rope. Most coaches know that it isn't the legs that wear out, it's the arms. For jumpers who are looking to be able to turn the rope faster with less fatigue. In addition, many jumpers have a difficult time using both hands equally which causes the rope to turn too close to their feet. The result is misses! By using the speed training balls a jumper's hands will become coordinated and the weak hand stronger. The result ... less misses and faster scores!!
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