Long-term use can be effectively, make your body, more super perfect curve.
Don't exercise, can take fitness bal as a ball chair sits.
Frustrated, small volume, convenient to you
By using simple exercise to help you improve imperfect appearance
Through the long-term use of posture bow-backed, can have a distinct improvement
Applicable to alvine overweight, hand and sisters too thick legs
fitness ball can improve one's balance, flexibility, strength, posture, cardiopulmonary function