Stock photography picture of Boxers work out on the heavy bag.

AJ4X5B - Licenced Caption Boxers work out on the heavy bag. Description Boxers hitting heavy bag. Lot's of vibrating motion. Boxers and bag in silohoutte while the gym is warm in red and yellow colors. Horizontal. Keywords Male,, Men,, Atheletes,, Boxers,, Training,, Heavy, Bag,, Preparing,, Motion,, Speed,, Power,, Stregnth,, Energy,, Yellow,, Silhouette.