This 14-pound rotating free weight has adjustable weight and resistance, and is ideal for any athletes who want to gain upper-body strength and endurance. A barn machine is the fact training apparatus I turn and use so that a speed back of the boxing may be hit with both hands. I just turn it around while maintaining the form, both arms An abdominal muscle, a back and greater pectoral muscle, it's a short time and moreover is explosive. Muscle training item of new sense possible to train. 【It's recommended to the person who does these training.】 Boxing・MMA,・rugby・basketball・baseball・UFC and weight training・fitness・diet・health maintenance...etc.
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