Gymball is made of high quality non-cracking material. If the ball is punctured, there is no rapid air leakage and is therefore safer. Exercise with the help of a ball improves flexibility, balance and posture. It is ideal for the prevention and minimization of lower back pain. The surface structure is characterized by a special treatment against sudden cracking. The maximum load of the ball is 400 Kg. The ball is suitable for people 160-180 cm high.