Modern office swivel chair with soft upholstered backrest / Ergonomic backrest with high-frequency welded embossed look, infinitely height-adjustable via ratchet mechanism / Comfortable intervertebral disc seat for optimum support in the pelvic area / Synchronous mechanism for synchronised adjustment of the seat and backrest tilt, individually adjustable to body weight, infinitely lockable / Polyamide base, black, equipped with load-dependent braked safety double castors for easy and comfortable sitting.backrest tilt, spring force individually adjustable to body weight, infinitely variable lockable / Black polyamide base equipped with load-dependent braked safety double castors for carpeted floors / This model carries theThis model bears the GS mark of the LGA Nuremberg and fulfils all safety-relevant requirements in this context