High-quality Syncron swivel chair in contract quality. Backrest with integrated lumbar support, height-adjustable via UP-AND-DOWN system, with large moulded seat including comfortable knee roll for a comfortable sitting posture.with armrests "H", height- and width-adjustable (via screw connection), with soft pad support, point synchronisation mechanism, spring force individually adjustable to body weight, multi-position locking system.adjustable to body weight, can be locked several times / including additional seat depth and seat tilt adjustment, polished aluminium base equipped with load-dependent braked safetyThis model bears the GS mark of the LGA Nuremberg and fulfils all safety-relevant requirements in this context