The Topstar Sitness 20 office stool, created by designer Thomas Walser, offers an innovative solution for ergonomic sitting. With the infinitely variable seat height adjustment via the practical top lift, you can adjust the seat height to suit your individual needs. The polished aluminum footplate and tubular wheels ensure stability and smooth gliding on various surfaces. The stool actively promotes your back health: the vertical swing effect thanks to the special depth suspension and the individually adjustable horizontal swing effect strengthen and mobilize your back in the long term while you sit. Thanks to the air pump included in the scope of delivery, you can adjust the swing effect quickly and easily. The Topstar Sitness 20 is the perfect stool for anyone who wants to stay active while sitting and strengthen their back muscles.