The chair comes standard with conductive upholstery fabric. It features a sturdy, flat-bottomed five-star base made of profiled steel tubing, epoxy-coated. - Conductive according to EN 61340-5-1 - Seat height adjustment - Backrest height adjustment - Permanent contact - Permanent contact backrest with seat tilt - Synchronous mechanism with weight adjustment - Steel base with five electrically conductive casters - Upholstery available in black, blue, red, and gray - With the synchronous mechanism, the seat height increases by 20 mm - Color: red - Version: Synchronous mechanism