Guest chair features a professional air grid back, mesh seat, fixed angled T-arms and heavy-duty sled base. The seat is thickly padded and contoured. Breathable back offers built-in lumbar support. Seat size is 20-1\/2" wide x 19-1\/2" deep x 3" thick. Back size is 20-1\/2" wide x 20" high. Distance between arms is 18-3\/4".