Modern Syncro swivel chair in trendy mesh look. Infinitely variable seat height adjustment with Toplift (LGA tested). Design backrest with breathable mesh cover, adjustable in height and tilt via ratchet mechanism. Comfortable intervertebral disc seat for optimum support in the pelvic area. Includes height-adjustable armrest "U2". Point synchronous mechanism with spring force individually adjustable to body weight, continuously lockable. Black polyamide base equipped with load-dependent braked safety double castors for carpeted floors. This model bears the GS mark of the LGA Nuremberg and fulfills all safety-relevant requirements.