Ключевые слова: active, activity, arm, athletic, background, closeup, equipment, exercise, exerciser, expander, finger, fit, fitness, flexor, force, forearm, grip, gym, hand, handle, health, healthy, isolated, lifestyle, male, man, metal, muscle, muscular, object, physical, plastic, power, resistance, resistive, rubber, sport, spring, squeeze, steel, strength, strengthen, strong, tool, trainer, training, weight, white, workout, wrist,