Office swivel chair with permanent contact and seat tilt adjustment. Five-legged steel tube frame with casters. The backrest is kept narrow at the top to ensure optimal freedom of movement. Wide, well-shaped lumbar support. Seat depression to accommodate the ischial tuberosities with anti-slip curvature. Rounded front edge of the seat. The central column cover protects the gas spring from dust. Flat steel base frame. Excellent, body-conforming ergonomics for healthy sitting. Anatomically designed seat surface automatically promotes the correct sitting position. Pelvis and spine remain in their natural S-shape. Easily interchangeable seat and back cushions as accessories. Seat and backrest made of robust, insensitive polypropylene. Seat dimensions width x depth 480 x 430 mm, backrest height 420 mm. Epoxy resin-coated steel five-legged frame. The permanent contact backrest adapts to the user's sitting posture and allows for a natural and balanced load and relief of different muscle and vertebral areas. The backrest tilt can be locked in any position. With the possibility of seat tilt, the optimal body opening angle of at least 90° can be maintained depending on the working posture, thereby reducing pressure loads in the thigh area. Ergonomics with permanent contact. Seat and backrest with tilt adjustment and ergonomic details. Your advantage: body-conforming ergonomics and maximum flexibility. Interchangeable cushion covers make these chairs true transformation artists. Awarded the Innovation Prize of the State of Baden-Württemberg.