This model bears the GS mark from LGA Nürnberg and meets all safety-related requirements for office and commercial use according to DIN EN 1335 Parts 1-3. It features a continuously adjustable seat height with a top lift. The design backrest has a breathable mesh cover and is adjustable in both height and angle. The comfortable lumbar seat provides optimal support in the pelvic area. The point-synchronous mechanism can be individually adjusted to body weight and is infinitely lockable. It is equipped with Q3 ring armrests. The chair also features load-dependent braked safety double casters for carpeted floors, allowing the chair to roll only under load; when unoccupied, the casters brake to prevent unwanted rolling. This item is delivered unassembled and can be set up in just a few simple steps. No assembly is required for gas springs, chair casters, footrests, etc.