Standard polypropylene base, picture shown with new adjustable arms ¢ Available with manual height adjustment (19515) C.O.M. : 2.25 yd. / 2.06 mwidth:depth:height:seat height: arm height:seat depth: 23.5 in. 25 in.38.5 in.18 - 22.5 in.25 in.18.5 in.