Group in gym doing back exercises on Swiss balls

• active, back, ball, biceps, body, bodybuilding, caucasian, center, citizen, class, club, course, effort, elderly, exercise, face, fit, fitness, group, gym, happy, head, health, man, muscle, old, pensioner, people, pilates, power, pushups, retired, retiree, senior, smile, sport, sporty, studio, train, women, workout
• ID: 64356235
• Model: 544129 523966 12400054 12423871 541798
• 5616 x 3744 pixels