Comfortable small office swivel chair designed for intervertebral discs. Features continuously variable seat height adjustment with Toplift (LGA tested). High, contoured backrest with spine shaping, adjustable in height and inclination. Special intervertebral disc seat provides optimum support in the pelvic area. Robust permanent contact mechanism is continuously lockable for added comfort. Elegant and stable polyamide base equipped with load-dependent braked safety double castors suitable for carpeted floors. This model bears the GS mark of the LGA Nuremberg and meets all safety-relevant requirements.