Gymnic Physio-Roll Blue Fitness Ball sized 12 in, provides an ideal medium for balance and strength training. Physio-Roll's saddle-like seat provides stability, comfort and confidence, so clients of every age and nearly every diagnosis may participate in ball therapy. Unique shape of the ball helps the therapists with activities that might otherwise be risky on a traditional ball. Sold individually. Recommended weight max. 270 lbs.