In the invention, {HEAD ~ a support member} for {TAIL ~ an arm rest padding} is configured to be adjustable in height 
In the invention , { HEAD ~ a support member } for { TAIL ~ an arm rest padding } is configured to be adjustable in height
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH