Photo 1 of ProBody Pilates Ball, Exercise Balls Physical Therapy - 9 Inch Small Exercise Ball for Between Knees for Rehab, Barre, Core, Stability & Yoga, Physical Therapy Ball for Back Pain (Rose)

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Photo 1 of ProBody Pilates Ball, Exercise Balls Physical Therapy - 9 Inch Small Exercise Ball for Between Knees for Rehab, Barre, Core, Stability & Yoga, Physical Therapy Ball for Back Pain (Rose)Photo 2 of ProBody Pilates Ball, Exercise Balls Physical Therapy - 9 Inch Small Exercise Ball for Between Knees for Rehab, Barre, Core, Stability & Yoga, Physical Therapy Ball for Back Pain (Rose)