Coordinated with our popular swivel chairs of the SSI PROLINE series, we now offer you the matching visitor chairs Proline Visit. ergonomic backrest, upholstered with decorative stitching and plastic back shell comfortable trough seat with seat bottom shell in black plastic incl. Armrests made of polyamide, black Cover fabric: 100 % Trevira CS, flame retardant Load: max. 110 kg Seat dimensions: W 480 x D 480 x H 480 mm Backrest height: 430 mm Stable, chromium-plated four-legged tubular steel frame, Ø 25 mm StackableSitting in motion is a medically tested form of seating recommended by orthopedists/physiotherapists. The three-dimensional mobility of the seat surface ensures that the back muscles are kept permanently in motion and thus specifically prevents posture problems and spinal curvatures. Another pleasant side effect of this system is the activation of the movement and sensory center in the brain - this keeps you fresh throughout the day and increases concentration and performance.