Topstar Fitness stool "Sitness Half Ball", blue Seat height: 530

With the Sitness Half Ball from Topstar, you essentially get a "2 for 1" product. As a design fitness stool, it can be infinitely adjusted to the desired seat height. The three-dimensional movable seat surface is formed by an air-filled half-ball that is encased in a 3D mesh fabric cover. The cover can be opened with a zipper, allowing the half-ball to be used as a training device for the abdomen, legs, and buttocks. After your workout, simply place the ball back into the cover to have a stool again. A pump for inflating the half-ball is included in the package. As a stool, the Sitness Half Ball also features a stable, aluminum-silver painted base with wheels designed for carpeted floors. It has been tested by Intertek Fürth and carries the GS mark, which certifies that it meets all relevant safety requirements.