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Jeff Martone is one of the world's leading Kettlebell instructors. His impressive list of certifications includes: Russian Kettlebell Challenge (RKC), certified instructor; Kettlebell Sport Lifting Coach in the American Kettlebell Club; Cross Fit Level II certified instructor and certified Physical Fitness Specialist, Cooper Institute for Aerobics Research. Jeff is also a 1st Degree Black Belt, Gun Tao Kung Fu and a 3rd Degree Black Belt, Pointing Hand Kung Fu. He is the author of numerous DVDs, including H2H Kettlebell Circuits and Power Behind the Punch.