Special features: the saddle seat prevents an unnatural sitting position which is harmful to health, and prevents back problems. Favours an upright posture with a straight back, horizontally positioned thighs and therefore an ideal sitting position. The saddle seat lets the spine move around its balanced central axis with a natural spinal curvature and minimally strained muscles. It permits undisturbed postural changes, an optimal visual overview and improved use of the hands. The open sitting position allows good blood circulation. The saddle seat prevents damage which can occur due to a wrong sitting position. Seat height: min. 50 cm, max. 70 cm 5-legged safety rotating stand with braked safety castors. Gas lift system for height adjustment. Available in various colours. TUNDRA cover material.