The Sharp Shape BALANCE BALL PRO balance board has a positive effect on eliminating back and joint pain, developing coordination of movement and strengthening stabilizing muscle parts - these are located in deeper layers, which are otherwise very difficult to exercise. Beginner exercises can range from simply keeping a balance, to reinforcing positions using other equipment to using the board for burpees. For more advanced balance exercises, the ball can be rotated and exercises can be performed on the oval side.The Sharp Shape Balance ball is a truly multifunctional fitness tool made of durable and high quality PVC, with the possibility of adjusting the inflation using the foot pump included in the package.