Gymnastics ball with massage Profit 85 cm purple DK2104 The Gymnastics ball Profit will diversify any workout and help you develop healthy habits. This model is equipped with a surface with knots, which can be used for massage and helps stimulate your body blood circulation. The ball will also work as a seat for people doing office work. Technical data: Diameter: 85 cm Maximum user weight: 250 kg Material: PVC