A man is balancing on a blue exercise ball on his stomach while in a gym.
A man demonstrates how to work your shoulders while lying on a stability ball.
A man does various stretches on a purple ball inside of a gym.
Man laying on his stomach on a blue ball suspending his body in a workout motion.
The man demonstrates an exercise of laying across the ball and stretching.
A man in an exercise room is demonstrating exercises on a balancing ball.
A man in a studio gym is resting his body on a gym ball and facing downward while commentating.
A man is demonstrating on how to work out the shoulder and chest using the Swiss ball.
A man lying on a yoga ball on his stomach does shoulder stretches.
a man in a room on a mat lying on a ball exercising