Modern office swivel chair in trendy mesh look, Infinitely variable seat height adjustment with top lift (LGA tested), Design backrest with breathable mesh cover, infinitely variable in height and inclination, Comfortable flat seat with comfortable knee roll, Comfortable permanent contact mechanism, infinitely adjustable, 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 in this context fulfils all safety-relevant requirements.