USI Gym ball can be used for Various Types of Workouts be it squats, push-ups, abdominal tucks, crunches or balance or even yoga. Gym balls are ideal for back exercises, sit ups and general fitness, yoga and Pilates. They can also be used in place of chairs at office.Buy Your USI Gym Balls At Discounted Price In Our Brand New Sports Store EliteSportsWorld In Vadapalani, Chennai.