Dual Curve Ergonomic Medical Stool The dual curve medical stool features a ergonomically designed seat pad. The curvature and static tilt of the seat encourages pelvic tilt which prevents slouching and promotes positive posture.Specifications A safe working load capacity of 150 kg Choice of height range- 45 cm to 59cm or 54 cm to 74 cm foot support ring fitted on high models Features Two heights ranges available 5 year warranty..