Overview Reviews Product Description Premium Italian inflatable exercise balls and rolls. 600 pound weight capacity. Available in various sizes and colors. Product Videos Custom Field Product Reviews Write a Review Write a Review × PhysioGymnic PhysioGymnic Inflatable Exercise Ball - Yellow - 18" (45 cm) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *