The main headrest body 4 comprises an interior member 44 of synthetic resin rubber and other rubber based cushionlike material and {HEAD ~ an extensible surface cover} 43 as {TAIL ~ an exterior member} 
The main headrest body 4 comprises an interior member 44 of synthetic resin rubber and other rubber based cushionlike material and { HEAD ~ an extensible surface cover } 43 as { TAIL ~ an exterior member }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL