Wide range of uses, from modern home offices to eye-catchers in waiting areas / Fitness stool with integrated exercise ball as an alternative seat for sitting in motion / Elegant and stable feet made of chrome-plated light metal / Seat height and vertical swing effect individually adjustable to body weight thanks to air pressure regulation / Air pump included / This model bears the GS mark from the LGA Nuremberg.and vertical swing effect can be individually adjusted to body weight by regulating the air pressure / Air pump included / This model bears the GS mark of the LGA Nuremberg and therefore fulfils all safety requirements for seating alternatives