Nice pair of office/desk chairs designed by Antonio Citterio and manufactured by Vitra and part of the Axess collection. The chairs and armrests are height adjustable, the backs tilt back and are very comfortable. The chairs have casters on an aluminum star base and they swivel. Measurements: 35 to 40 inches adjustable hight x 26 inches wide at arms x 20 inches seat width x 22.50 inches deep x 16 to 22 seat height with an adjustable arm height that goes from 22.50 when the seat is lowered 27.50, 28, 28.50, to 31.50 when the seat is up, adjusting .50 at a time.