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