a spring for urging {HEAD ~ the second end portions} of {TAIL ~ the pair} of hair retainers in a closing direction thereof, 
of
a spring for urging { HEAD ~ the second end portions } of { TAIL ~ the pair } of hair retainers in a closing direction thereof ,
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH