High-quality Syncron swivel chair in contract quality with Sitness joint for three-dimensional sitting. It features a mesh backrest with integrated adjustable lumbar support, a height-adjustable mesh headrest, and a large contoured seat with a comfortable knee roll for an ergonomic sitting posture. The multifunction armrests "D2" are height and width adjustable via a clip system and include soft pad support. The chair has a point synchronous mechanism with spring force individually adjustable to body weight and multiple locking options. It also includes additional seat depth and seat tilt adjustments. The polished aluminium base is equipped with load-dependently braked safety double castors suitable for carpeted floors. This model bears the GS sign of the LGA Nürnberg and fulfills all safety-relevant requirements in this context.